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so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
`` ` var createcuboid = function ( x , y , z , w , h , d ) { var nodes = ; var edges = ; return { 'nodes ' : nodes , 'edges ' : edges } ; } ; `` ` we can then create a cuboid with width 100 , height 160 , depth 50 and one node on the origin like this : var shape = createcuboid ( 0 , 0 , 0 , 100 , 160 , 50 ) ; since our...
how come the shapes rotate as one object and not individually around their respective origins ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
start by wrapping the code to display edges in a for loop that loops through all the shapes : // draw edges stroke ( edgecolor ) ; for ( var shapenum = 0 ; shapenum & lt ; shapes.length ; shapenum++ ) { var nodes = shapes [ shapenum ] .nodes ; var edges = shapes [ shapenum ] .edges ; for ( var e = 0 ; e & lt ; edges.le...
what do pmousex and pmousey mean ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
var shape1 = createcuboid ( -120 , -20 , -20 , 240 , 40 , 40 ) ; var shape2 = createcuboid ( -120 , -50 , -30 , -20 , 100 , 60 ) ; var shape3 = createcuboid ( 120 , -50 , -30 , 20 , 100 , 60 ) ; var shapes = [ shape1 , shape2 , shape3 ] ; now we need to change the display and rotate functions to work with an array of o...
is there a way to change the size of the objects without it reverting back to ( 0 , 0 ) being the rotating point ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
we define the nodes as being every combination of position with or without the corresponding dimension . edges are defined the same way as before ( except rather than define each of the edges individually first , i define them all at once ) . note that this function allows you to specify negative dimensions for the cub...
is there any `` easy '' way to make a 3d rect ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
in other words , we want a function that maps a position and dimensions into an array of nodes and an array of edges . defining a cuboid a cuboid has three dimensions : width , height and depth : it also has a position in 3d space , giving us six parameters . there are a couple of ways we could define the position of t...
almost like how we call rect ( x , y , width , height ) ; , but in 3d , so like 3drect ( x , y , width , height , depth ) ; ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
in other words , we want a function that maps a position and dimensions into an array of nodes and an array of edges . defining a cuboid a cuboid has three dimensions : width , height and depth : it also has a position in 3d space , giving us six parameters . there are a couple of ways we could define the position of t...
how can i put something within a 3d object ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
note , you can use any string to refer to the variable , i just find it easier to use the same word . // create a cuboid with a vertex at ( x , y , z ) // with width , w , height , h , and depth , d. var createcuboid = function ( x , y , z , w , h , d ) { var nodes = [ ] ; var edges = [ ] ; var shape = { 'nodes ' : nod...
what is var edge mean ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
`` ` var createcuboid = function ( x , y , z , w , h , d ) { var nodes = ; var edges = ; return { 'nodes ' : nodes , 'edges ' : edges } ; } ; `` ` we can then create a cuboid with width 100 , height 160 , depth 50 and one node on the origin like this : var shape = createcuboid ( 0 , 0 , 0 , 100 , 160 , 50 ) ; since our...
can you still make 3d shapes move just like you can with any other variable ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
start by wrapping the code to display edges in a for loop that loops through all the shapes : // draw edges stroke ( edgecolor ) ; for ( var shapenum = 0 ; shapenum & lt ; shapes.length ; shapenum++ ) { var nodes = shapes [ shapenum ] .nodes ; var edges = shapes [ shapenum ] .edges ; for ( var e = 0 ; e & lt ; edges.le...
if i wanted to make a nurbs figure , should i figure out first how to make a brezier curve and then i just need to rotate the vertex as we have been doing here ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dimensions . in other words , we want a function that maps a position and dimensions into an array of nodes and an array of edges .
how to create 3d pyramid ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
start by wrapping the code to display edges in a for loop that loops through all the shapes : // draw edges stroke ( edgecolor ) ; for ( var shapenum = 0 ; shapenum & lt ; shapes.length ; shapenum++ ) { var nodes = shapes [ shapenum ] .nodes ; var edges = shapes [ shapenum ] .edges ; for ( var e = 0 ; e & lt ; edges.le...
at the end of the talk-through , how come he puts nodes as a parameter for the rotatex/y/z3d functions , as well as in the mousedragged ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
note that this function allows you to specify negative dimensions for the cuboid . `` ` var createcuboid = function ( x , y , z , w , h , d ) { var nodes = ; var edges = ; return { 'nodes ' : nodes , 'edges ' : edges } ; } ; `` ` we can then create a cuboid with width 100 , height 160 , depth 50 and one node on the ori...
hello , what does return { 'nodes ' : nodes , 'edges ' : edges } ; this do ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ?
what does the `` : '' and the single apostrophe do ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dimensions .
how would you rotate the cube in respect to the center ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
in other words , we want a function that maps a position and dimensions into an array of nodes and an array of edges . defining a cuboid a cuboid has three dimensions : width , height and depth : it also has a position in 3d space , giving us six parameters . there are a couple of ways we could define the position of t...
ok so i 've learned to make 3d cubes , boxes and other rectangular things , but what about 3d spheres and ellipses how do i make them ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
note that this function allows you to specify negative dimensions for the cuboid . `` ` var createcuboid = function ( x , y , z , w , h , d ) { var nodes = ; var edges = ; return { 'nodes ' : nodes , 'edges ' : edges } ; } ; `` ` we can then create a cuboid with width 100 , height 160 , depth 50 and one node on the ori...
in this segment of code : // create a cuboid with a vertex at ( x , y , z ) // with width , w , height , h , and depth , d. var createcuboid = function ( x , y , z , w , h , d ) { var nodes = [ ] ; var edges = [ ] ; var shape = { 'nodes ' : nodes , 'edges ' : edges } ; return shape ; } ; i do n't understand the line va...
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
var shape1 = createcuboid ( -120 , -20 , -20 , 240 , 40 , 40 ) ; var shape2 = createcuboid ( -120 , -50 , -30 , -20 , 100 , 60 ) ; var shape3 = createcuboid ( 120 , -50 , -30 , 20 , 100 , 60 ) ; var shapes = [ shape1 , shape2 , shape3 ] ; now we need to change the display and rotate functions to work with an array of o...
var nodes = shapes [ obj ] .nodes ; should n't obj be shapenum like it is in the full program ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
note , you can use any string to refer to the variable , i just find it easier to use the same word . // create a cuboid with a vertex at ( x , y , z ) // with width , w , height , h , and depth , d. var createcuboid = function ( x , y , z , w , h , d ) { var nodes = [ ] ; var edges = [ ] ; var shape = { 'nodes ' : nod...
how would you make a 3d shape like the green doughnut shape in what are 3d shapes ?
so we have a cube now , but what if we want to change its position or size ? or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dim...
or what if we want a rectangular cuboid or many cuboids ? with our current code , we would have to change the nodes one-by-one , which would be nuisance . what we would like is a simple method to create a cuboid with a certain position and dimensions .
can someone explain why that would be happening if possible ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
why is pop art so popular , even in today 's world ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
in paragraph one , are the saying that warhol made these pieces because of mass production , or that his work seems related ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
warhol began making silkscreens , before removing himself further from the process by having others do the actual printing in his studio , aptly named “ the factory. ” similarly , oldenburg abandoned his early installations and performances , to produce the large-scale sculptures of cake slices , lipsticks , and clothe...
is pop art the most populare type of art ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
warhol began making silkscreens , before removing himself further from the process by having others do the actual printing in his studio , aptly named “ the factory. ” similarly , oldenburg abandoned his early installations and performances , to produce the large-scale sculptures of cake slices , lipsticks , and clothe...
what technically counts as pop art ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
significantly , the development of television , as well as changes in print advertising , placed new emphasis on graphic images and recognizable brand logos—something that we now take for granted in our visually saturated world . it was in this artistic and cultural context that pop artists developed their distinctive ...
is pop surrealism ( my preferred style ) also in the same category ?
popular culture , `` popular '' art at first glance , pop art might seem to glorify popular culture by elevating soup cans , comic strips and hamburgers to the status of fine art on the walls of museums . but , then again , a second look may suggest a critique of the mass marketing practices and consumer culture that e...
warhol began making silkscreens , before removing himself further from the process by having others do the actual printing in his studio , aptly named “ the factory. ” similarly , oldenburg abandoned his early installations and performances , to produce the large-scale sculptures of cake slices , lipsticks , and clothe...
was there a group of people against pop art ?
who is depicted here ? this relief scene from around 100 to 300 depicts the dream of maya , the mother of the historical buddha . queen maya is asleep in her palace under a full moon . an attendant stands guard outside . in her dream , a white elephant enters her side . this is a miraculous conception that results in t...
who is depicted here ? this relief scene from around 100 to 300 depicts the dream of maya , the mother of the historical buddha . queen maya is asleep in her palace under a full moon . an attendant stands guard outside .
or were `` miraculous conception '' stories popular in this era , the annunciation and queen maya 's dream being two prominent examples ?
who is depicted here ? this relief scene from around 100 to 300 depicts the dream of maya , the mother of the historical buddha . queen maya is asleep in her palace under a full moon . an attendant stands guard outside . in her dream , a white elephant enters her side . this is a miraculous conception that results in t...
this scene , along with others from the life of the buddha , would have been recognizable to viewers at the time it was made , as the scenes from the life of christ on the walls of a cathedral would have been familiar to medieval european viewers . what other scenes from the life of the buddha are important ? several s...
be the starting point of producing a face on buddha ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
since p53 acts by binding to target genes and activating their transcription , the non-binding mutant protein is unable to do its job $ ^ { 14 } $ . when p53 is defective , a cell with damaged dna may proceed with cell division . the daughter cells of such a division are likely to inherit mutations due to the unrepaire...
how does dna get damaged in the first place ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
over time , a mutation might take place in one of the descendant cells , causing increased activity of a positive cell cycle regulator . the mutation might not cause cancer by itself either , but the offspring of this cell would divide even faster , creating a larger pool of cells in which a third mutation could take p...
could you make a cancer-like cell , or rather a cell that has a mutation that makes it and its offspring grow into a neoplasm , and have their mutation be good ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
we 'll also see how abnormal forms of cell cycle regulators can contribute to cancer . what ’ s wrong with cancer cells ? cancer cells behave differently than normal cells in the body . many of these differences are related to cell division behavior .
the article says that cancer cells are known to be immortal , so if that 's the case , could you use `` good '' neoplasms to fight cancerous ones that would later form tumors ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
over generations , cells with faulty p53 tend to accumulate mutations , some of which may turn proto-oncogenes to oncogenes or inactivate other tumor suppressors . p53 is the gene most commonly mutated in human cancers , and cancer cells without p53 mutations likely inactivate p53 through other mechanisms ( e.g. , incr...
why not engineer a retrovirus to insert an extra copy of the p53 gene ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
over generations , cells with faulty p53 tend to accumulate mutations , some of which may turn proto-oncogenes to oncogenes or inactivate other tumor suppressors . p53 is the gene most commonly mutated in human cancers , and cancer cells without p53 mutations likely inactivate p53 through other mechanisms ( e.g. , incr...
first as a treatment for people with a dangerous cancer , then try it on people who have only one working copy of p53 ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in addition , emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division $ ^5 $ . how cancer develops cells have many different mechanisms to restrict cell division , repair dna damage , and prevent the development of cancer . because of this , it ’ s thought...
how is cancer formed or cuased ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in addition , emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division $ ^5 $ . how cancer develops cells have many different mechanisms to restrict cell division , repair dna damage , and prevent the development of cancer . because of this , it ’ s thought...
besides chemo and radiation , what other cures are there for cancer ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in general , however , mutations of two types of cell cycle regulators may promote the development of cancer : positive regulators may be overactivated ( become oncogenic ) , while negative regulators , also called tumor suppressors , may be inactivated . oncogenes positive cell cycle regulators may be overactive in ca...
so , how long does cancer cell cycle take compared to normal cell ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in addition , emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division $ ^5 $ . how cancer develops cells have many different mechanisms to restrict cell division , repair dna damage , and prevent the development of cancer . because of this , it ’ s thought...
can cancer become so cancerous that kills itself ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
these genes encode proteins that sense and repair dna damage , intercept dna-binding chemicals , maintain the telomere caps on the ends of chromosomes , and play other key maintenance roles $ ^9 $ . if one of these genes is mutated and nonfunctional , other mutations can accumulate rapidly . so , if a cell has a nonfun...
could so many mutations accumulate that it would not be able to divide anymore ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
this naming system reflects that a normal proto-oncogene can turn into an oncogene if it mutates in a way that increases its activity . mutations that turn proto-oncogenes into oncogenes can take different forms . some change the amino acid sequence of the protein , altering its shape and trapping it in an “ always on ...
are n't there two types of oncogenes that can occur ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
cancer cells can divide many more times than this , largely because they express an enzyme called telomerase , which reverses the wearing down of chromosome ends that normally happens during each cell division $ ^4 $ . cancer cells are also different from normal cells in other ways that aren ’ t directly cell cycle-rel...
how would scientists use techniques of counting cells in different stages of he cell cycle like you did in this lab to determine the effectiveness of a cancer treatment like chemotherapy ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
cancer cells can divide many more times than this , largely because they express an enzyme called telomerase , which reverses the wearing down of chromosome ends that normally happens during each cell division $ ^4 $ . cancer cells are also different from normal cells in other ways that aren ’ t directly cell cycle-rel...
how can damage to the cell cycle checkpoints in cancer cells lead to both the uncontrolled division , and eventually also lead to the altered behavior and emt ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
we 'll also see how abnormal forms of cell cycle regulators can contribute to cancer . what ’ s wrong with cancer cells ? cancer cells behave differently than normal cells in the body . many of these differences are related to cell division behavior .
why not encapsulate the cancer cell when the divide time is less then normal cells ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in the diagram above , the growth factor receptor , the ras protein , and the signaling enzyme raf are all encoded by proto-oncogenes $ ^ { 11 } $ . overactive forms of these proteins are often found in cancer cells . for instance , oncogenic ras mutations are found in about 90 % of pancreatic cancers .
how do metabolic proteins link to each other - leading to the destruction of cancer cells ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
many of the proteins that transmit growth factor signals are encoded by proto-oncogenes . normally , these proteins drive cell cycle progression only when growth factors are available . if one of the proteins becomes overactive due to mutation , however , it may transmit signals even when no growth factor is around .
in the first paragraph , the text talks about growth factors for the cell , what are these growth factors ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
many of these differences are related to cell division behavior . for example , cancer cells can multiply in culture ( outside of the body in a dish ) without any growth factors , or growth-stimulating protein signals , being added . this is different from normal cells , which need growth factors to grow in culture . c...
first , why is it that only things that have to do with rapid growth mutate ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
normally , these proteins drive cell cycle progression only when growth factors are available . if one of the proteins becomes overactive due to mutation , however , it may transmit signals even when no growth factor is around . in the diagram above , the growth factor receptor , the ras protein , and the signaling enz...
why is n't there such a thing as someone 's hair color changing suddenly due to a mutation ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
how do these changes arise ? at least in some cases , they seem to be due to inactivating mutations in the very genes that keep the genome stable ( that is , genes that prevent mutations from occurring or being passed on ) $ ^8 $ . these genes encode proteins that sense and repair dna damage , intercept dna-binding che...
should n't mutations effect all sort of things more or less equally ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in addition , emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division $ ^5 $ . how cancer develops cells have many different mechanisms to restrict cell division , repair dna damage , and prevent the development of cancer . because of this , it ’ s thought...
what are some cancer signs ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
we 'll also see how abnormal forms of cell cycle regulators can contribute to cancer . what ’ s wrong with cancer cells ? cancer cells behave differently than normal cells in the body . many of these differences are related to cell division behavior .
can you explain how cancerous cells proliferate ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in general , human cells can go through only about 40-60 rounds of division before they lose the capacity to divide , `` grow old , '' and eventually die $ ^3 $ . cancer cells can divide many more times than this , largely because they express an enzyme called telomerase , which reverses the wearing down of chromosome ...
at what stage of the cell cycle are cancer cells normally killed ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
p53 is the gene most commonly mutated in human cancers , and cancer cells without p53 mutations likely inactivate p53 through other mechanisms ( e.g. , increased activity of the proteins that cause p53 to be recycled ) $ ^ { 14,15 } $ . check your understanding : viruses and cancer some forms of cancer are linked to sp...
how does cancer start in a certain family and travel through the family blood ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
how do these changes arise ? at least in some cases , they seem to be due to inactivating mutations in the very genes that keep the genome stable ( that is , genes that prevent mutations from occurring or being passed on ) $ ^8 $ . these genes encode proteins that sense and repair dna damage , intercept dna-binding che...
where are the genes which keep the genome stable cell ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
here , we ’ ll look in more detail at what 's wrong with cancer cells . we 'll also see how abnormal forms of cell cycle regulators can contribute to cancer . what ’ s wrong with cancer cells ?
in relation to fine need aspiration tests done on thyroid nodules , does an abnormal cell result mean cancer ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
in general , human cells can go through only about 40-60 rounds of division before they lose the capacity to divide , `` grow old , '' and eventually die $ ^3 $ . cancer cells can divide many more times than this , largely because they express an enzyme called telomerase , which reverses the wearing down of chromosome ...
the article states that `` cancer cells can divide many more times because they express an enzyme called telomerase '' , but do n't normal cells also have telomerase ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
normally , these proteins drive cell cycle progression only when growth factors are available . if one of the proteins becomes overactive due to mutation , however , it may transmit signals even when no growth factor is around . in the diagram above , the growth factor receptor , the ras protein , and the signaling enz...
when we speak of a mutation leading to a lump benign or not : can that mutation be due to an unfavorable recombination of homologous chromosomes during the mitosis phase ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
how might this process work ? in a hypothetical example , a cell might first lose activity of a cell cycle inhibitor , an event that would make the cell ’ s descendants divide a little more rapidly . it ’ s unlikely that they would be cancerous , but they might form a benign tumor , a mass of cells that divide too much...
what would happen if every cell in the body simultaneously did apoptosis ?
introduction does cell cycle control matter ? if you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes . cancer is basically a disease of uncontrolled cell division . its development and progression are usually linked to a series of changes in the activity of c...
over generations , cells with faulty p53 tend to accumulate mutations , some of which may turn proto-oncogenes to oncogenes or inactivate other tumor suppressors . p53 is the gene most commonly mutated in human cancers , and cancer cells without p53 mutations likely inactivate p53 through other mechanisms ( e.g. , incr...
how does the e6 actually defect a p53 ?
background introduction to lagrange multipliers lagrange multipliers technique , quick recap when you want to maximize ( or minimize ) a multivariable function $ \bluee { f ( x , y , \dots ) } $ subject to the constraint that another multivariable function equals a constant , $ \rede { g ( x , y , \dots ) = c } $ , fol...
there is a function we want to maximize , $ \begin { align } \quad f ( x , y ) \end { align } $ and a constraint , $ \begin { align } \quad g ( x , y ) = c \end { align } $ we start by writing the lagrangian , $ \begin { align } \quad { \mathcal { l } ( x , y , \lambda ) = f ( x , y ) - \lambda ( g ( x , y ) -c ) } . \...
professor saul , could you please do some videos that convey the geometric intuition behind duality and how it is used in optimization problems ?
background introduction to lagrange multipliers lagrange multipliers technique , quick recap when you want to maximize ( or minimize ) a multivariable function $ \bluee { f ( x , y , \dots ) } $ subject to the constraint that another multivariable function equals a constant , $ \rede { g ( x , y , \dots ) = c } $ , fol...
in other words , $ \nabla \mathcal { l } ( x^ , y^ , \lambda^* ) = 0 $ and $ ( x^ , y^ ) $ maximizes $ f $ ( subject to the constraint ) . when we start to think of $ c $ as a variable , we must account for the fact that the solution $ ( x^ , y^ , \lambda^* ) $ changes as the constraint $ c $ changes . to do this , we ...
i 'm sure why we are interested in how the solution changes with a change in c ?
background introduction to lagrange multipliers lagrange multipliers technique , quick recap when you want to maximize ( or minimize ) a multivariable function $ \bluee { f ( x , y , \dots ) } $ subject to the constraint that another multivariable function equals a constant , $ \rede { g ( x , y , \dots ) = c } $ , fol...
showing why this is true is a bit tricky , but first , let 's take a moment to interpret it . for example , if we found that $ \lambda^* ( b ) = 2.59 $ , it would mean each additional dollar you spend over your budget would yield another $ \ $ 2.59 $ in revenue . conversely , decreasing your budget by a dollar will cos...
in the previous article , there was an example with ( lambda ) =0 , does this means that increasing the budget does not affect the revenue ?
key points : even after a gene has been transcribed , gene expression can still be regulated at various stages . some transcripts can undergo alternative splicing , making different mrnas and proteins from the same rna transcript . some mrnas are targeted by micrornas , small regulator rnas that can cause an mrna to be...
ubiquitination proteins can be tagged for degradation by the addition of a chemical marker called ubiquitin . ubiquitin-tagged proteins are taken to the proteasome , or “ recycling center ” of the cell , and broken down into their component parts . ubiquitination is an important way of controlling the persistence of a ...
is the proteasome the same as a peroxisome ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
we check the solution by plugging $ \redd2 $ back into the original equation : $ \begin { align } 3x+7 & amp ; =13 \\ 3\cdot \redd 2 + 7 & amp ; \stackrel ? = 13 \\ 6+7 & amp ; \stackrel ? = 13 \\ 13 & amp ; = 13 ~~~~~~~\text { yes ! } \end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9...
how did 2/3b become 5/3b in the second step ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ .
when do we use these in real life ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself .
is a multi-step equation any problem with more than one step ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ .
why do we have cutting boards without lips in this world ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself .
what is 15x-10=10 ( x+1 ) ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
\end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9a - 5 $ we need to manipulate the equation to get $ a $ by itself . $ \begin { align } 5 + 14a & amp ; = 9a - 5 \\ 5 + 14a \blued { - 9a } & amp ; = 9a - 5 \blued { - 9a } \\ 5 + 5a & amp ; = -5 \\ 5 + 5a \blued { -5 } & amp ; = -5 \blu...
hi , in the multistep equation review practice questions a problem is given as ; 2/3 b + 5 equals 20 - b step 1 ) add b 5/3 b + 5 equals 20 step 2 ) subtract 5 5/3 b equals 15 step 3 ) multiply by 3/5 can someone please explain this last step ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
\end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9a - 5 $ we need to manipulate the equation to get $ a $ by itself . $ \begin { align } 5 + 14a & amp ; = 9a - 5 \\ 5 + 14a \blued { - 9a } & amp ; = 9a - 5 \blued { - 9a } \\ 5 + 5a & amp ; = -5 \\ 5 + 5a \blued { -5 } & amp ; = -5 \blu...
and how does 5/3 x 3/5 equal 9 ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
we check the solution by plugging $ \redd2 $ back into the original equation : $ \begin { align } 3x+7 & amp ; =13 \\ 3\cdot \redd 2 + 7 & amp ; \stackrel ? = 13 \\ 6+7 & amp ; \stackrel ? = 13 \\ 13 & amp ; = 13 ~~~~~~~\text { yes ! } \end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9...
how did 2/3b become 5/3b in the second step ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
we check the solution by plugging $ \redd2 $ back into the original equation : $ \begin { align } 3x+7 & amp ; =13 \\ 3\cdot \redd 2 + 7 & amp ; \stackrel ? = 13 \\ 6+7 & amp ; \stackrel ? = 13 \\ 13 & amp ; = 13 ~~~~~~~\text { yes ! } \end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9...
can someone please help me understand how to solve 2/3b + 5 = 20 -b ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
we check the solution by plugging $ \redd2 $ back into the original equation : $ \begin { align } 3x+7 & amp ; =13 \\ 3\cdot \redd 2 + 7 & amp ; \stackrel ? = 13 \\ 6+7 & amp ; \stackrel ? = 13 \\ 13 & amp ; = 13 ~~~~~~~\text { yes ! } \end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9...
how does it go from 2/3 b to 5/3b ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
we check the solution by plugging $ \redd2 $ back into the original equation : $ \begin { align } 3x+7 & amp ; =13 \\ 3\cdot \redd 2 + 7 & amp ; \stackrel ? = 13 \\ 6+7 & amp ; \stackrel ? = 13 \\ 13 & amp ; = 13 ~~~~~~~\text { yes ! } \end { align } $ example 2 : variables on both sides solve for $ a $ . $ 5 + 14a = 9...
i 'm assuming that 2/3b plus b equals to 5/3b but how though ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ .
what exactly is a variable ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ .
whenever the plane take off so how much gasoline will it fuel ?
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself . $ \begin { align } 3x+7 & amp ; =13 \\ 3x+7\redd { -7 } & amp ; =13\redd { -7 } \\ 3x & amp ; =6...
when solving an equation , our goal is to find the value of the variable that makes the equation true . example 1 : two-step equation solve for $ x $ . $ 3x+7=13 $ we need to manipulate the equation to get $ x $ by itself .
how comes the equation 2/3b becomes 5/3b at step two when we combine like terms ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
the objectives of the us invasion of afghanistan were to depose the taliban and rout al-qaeda . although us troops enjoyed initial success at driving the taliban from power , bin laden managed to escape , and the taliban eventually regrouped and launched a major counter-offensive . the conflict in afghanistan was one o...
also , although there is conspiracy theories , how could have the twin towers collapsed within itself instead of falling over ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
what caused the world trade center towers to collapse ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
in a democracy , what is the proper relationship and balance between security and liberty ? how would you evaluate president bush 's decision to go to war in afghanistan and iraq ? how does the global war on terror compare to past military conflicts , such as world war ii or vietnam ?
where were the planes supposed to go before the hijackings ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
the objectives of the us invasion of afghanistan were to depose the taliban and rout al-qaeda . although us troops enjoyed initial success at driving the taliban from power , bin laden managed to escape , and the taliban eventually regrouped and launched a major counter-offensive . the conflict in afghanistan was one o...
how were the us troops able to find and kill osama bin laden without getting attacked by the taliban or other islamic soldiers ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
in a democracy , what is the proper relationship and balance between security and liberty ? how would you evaluate president bush 's decision to go to war in afghanistan and iraq ? how does the global war on terror compare to past military conflicts , such as world war ii or vietnam ?
in paragraph three , how would you evaluate president bush 's decision to go to war in afghanistan and iraq ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
how would you evaluate president bush 's decision to go to war in afghanistan and iraq ? how does the global war on terror compare to past military conflicts , such as world war ii or vietnam ?
so the 9/11 incident caused war on the middle east ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
when revelations surfaced that the national security agency ( nsa ) was collecting mass cellphone data , the law was amended so that the agency could only request the data of certain targeted individuals . a public debate erupted over whether the nsa had violated the american public ’ s reasonable expectations of priva...
is that why there 's lots of american soldiers in the middle east ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
he condemned us support for israel and criticized the presence of us troops in saudi arabia during the first gulf war . bin laden was one of the founders of al-qaeda , a radical sunni islamist terrorist network that has attacked civilian and military targets in numerous countries . al-qaeda organized the september 11th...
why was the south tower the first one to collapse even though it was the second one to be hit ?
overview on september 11 , 2001 , terrorists affiliated with al-qaeda hijacked and flew airplanes into the world trade center in new york city and the pentagon in washington , d.c. nearly 3,000 americans were killed in the attacks . the administration of president george w. bush declared a global war on terror and sent...
bin laden was one of the founders of al-qaeda , a radical sunni islamist terrorist network that has attacked civilian and military targets in numerous countries . al-qaeda organized the september 11th attacks , which involved hijacking and flying airplanes into the world trade center in new york city and the pentagon i...
was exlaty 6,000 people injired ?
what you need to know before taking this lesson the grouping method can be used to factor polynomials with $ 4 $ terms by taking out common factors multiple times . if this is new to you , you 'll want to check out our intro to factoring by grouping article . we also recommend that you review our article on factoring q...
summary in general , we can use the following steps to factor a quadratic of the form $ \blued ax^2+\goldd bx+\purplec c $ : start by finding two numbers that multiply to $ \blued a\purplec c $ and add to $ \goldd b $ . use these numbers to split up the $ x $ -term . use grouping to factor the quadratic expression .
why should i have to use only positive numbers ?
what you need to know before taking this lesson the grouping method can be used to factor polynomials with $ 4 $ terms by taking out common factors multiple times . if this is new to you , you 'll want to check out our intro to factoring by grouping article . we also recommend that you review our article on factoring q...
what you will learn in this lesson in this article , we will use grouping to factor quadratics with a leading coefficient other than $ 1 $ , like $ 2x^2+7x+3 $ . example 1 : factoring $ 2x^2+7x+3 $ since the leading coefficient of $ ( \blued2x^2\goldd { +7 } x\purplec { +3 } ) $ is $ \blued 2 $ , we can not use the sum...
why do we multiple 2 and 3 in the first example ?
what you need to know before taking this lesson the grouping method can be used to factor polynomials with $ 4 $ terms by taking out common factors multiple times . if this is new to you , you 'll want to check out our intro to factoring by grouping article . we also recommend that you review our article on factoring q...
these two numbers tell us how to break up the $ x $ -term in the original expression . so we can express our polynomial as $ 2x^2+7x+3=2x^2+\teald 1x+\teald 6x+3 $ . we can now use grouping to factor the polynomial : $ \begin { align } & amp ; \phantom { = } ~~2x^2+1x+6x+3\\ & amp ; = ( { 2x^2+1x } ) { + ( 6x+3 ) } & a...
2x^2 + 7x-15 = 0 if r and s are two solutions of the equation above and r > s , which of the following is the value of r - s ?
what you need to know before taking this lesson the grouping method can be used to factor polynomials with $ 4 $ terms by taking out common factors multiple times . if this is new to you , you 'll want to check out our intro to factoring by grouping article . we also recommend that you review our article on factoring q...
take note : in step $ \small { \blued { ( 1 ) } } $ above , notice that because the third term is negative , a `` + '' was inserted between the groupings to keep the expression equivalent to the original . also , in step $ \small { \blued { ( 2 ) } } $ , we needed to factor out a negative gcf from the second grouping t...
does it matter if you factor out a negative vs a positive ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
your turn ! consider the function $ g ( x ) = ( x-4 ) ^2-5 $ which is graphed below . solution method 2 : the algebraic approach at this point , you may ask yourselves , `` do we always have to draw the graph when we want to find the range ? ''
can we set the equation to equal -1 then solve for the x value of the vertex ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
your turn ! consider the function $ g ( x ) = ( x-4 ) ^2-5 $ which is graphed below . solution method 2 : the algebraic approach at this point , you may ask yourselves , `` do we always have to draw the graph when we want to find the range ? ''
for what domain of values of y , the solution of x will be a real number ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
it turns out all we need to know in order to determine the range of a quadratic function is the $ y $ -value of the vertex of its graph , and whether it opens up or down . this is easy to tell from a quadratic function 's vertex form , $ y = \purplec { a } ( x-h ) ^2 + \blued { k } $ . in this form , the vertex is at $...
like how is the minimum or maximum value dependent on the constant term k in a ( x+h ) ^2+k ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
your turn ! consider the function $ g ( x ) = ( x-4 ) ^2-5 $ which is graphed below . solution method 2 : the algebraic approach at this point , you may ask yourselves , `` do we always have to draw the graph when we want to find the range ? ''
how do you solve for the domain of a function in fraction form , say : x-26 f ( x ) = -- -- -- -- -- -- -- -- ( x-4 ) ( x+45 ) are there any rules to figuring this out or do we just plug in numbers ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just as we 're used to referring to inputs of a function with the letter $ x $ , we w...
how would i find the range of the function 2x - 3x^2 ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just as we 're used to referring to inputs of a function with the letter $ x $ , we w...
what is the domain and range for bx-2x^2+4 , max value x= -3/2 , then find range ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
and you will be right in doing so ! laziness is a great motivation for finding better ways to solve problems . let 's think about the work we did above and look for a pattern .
in relation to these problems , how would you find the vertical asymptotes ?
in this article , we will learn how to find the range of quadratic functions . in other words , we will learn how to determine the set of all possible outputs of a given quadratic function . let 's study an example problem we want to find the range of the function $ f ( x ) =-2 ( x+3 ) ^2+7 $ . in this article , just a...
question 1 | question 2 - | - | so we saw how we can check whether a given value is a possible output using a graph . a graph can actually tell us the entire range of possible outputs ! for instance , the graph of $ y=f ( x ) $ shows that $ 7 $ ( the $ y $ -coordinate of the vertex ) is the maximum $ y $ -value that th...
may be apart from solving a quadratic equation using graphs , is it possible to solve it mathematically to obtain the range ?
at the crossroads of cultures nukuoro is a small isolated atoll in the archipelago of the caroline islands . it is located in micronesia , a region in the western pacific . archaeological excavations demonstrate that nukuoro has been inhabited since at least the eighth century . oral tradition corroborates these dates ...
johann stanislaus kubary , who visited the island in 1873 and in 1877 while working for the godeffroy trading company and its museum , and carl jeschke , a ship ’ s captain who first visited the atoll in 1904 and then regularly between 1910 and 1913 , give the most detailed information on the nukuoron figures . wooden ...
is that only wooden sculptures ?
at the crossroads of cultures nukuoro is a small isolated atoll in the archipelago of the caroline islands . it is located in micronesia , a region in the western pacific . archaeological excavations demonstrate that nukuoro has been inhabited since at least the eighth century . oral tradition corroborates these dates ...
both carvings are part of a small group of thirty-seven sculptures from nukuoro that arrived in western museum collections from the 1870s onwards . european artists believed that the highly stylized representation of the human in the nukuoro figures represented the purest form of art—an art that lay at the origins of m...
why is the representation of the human body important for the nukuoro ?
for the first time ever , students have access to a free , personalized practice program for the sat through an exclusive partnership between khan academy and the college board . by making world-class sat preparation available to anyone , anywhere , we hope to level the playing field so that every student has equal opp...
to share and see tips and best practices from other teachers , check out our teacher community . develop a school action plan with measurable goals for the year , and continue to track those goals . engage students ’ families , volunteers , or community groups to emphasize practice .
question : will that linking work for this year , school year 16-17 , still work between college board and khan to get this year 's ( 2016 ) psat scores ?
for the first time ever , students have access to a free , personalized practice program for the sat through an exclusive partnership between khan academy and the college board . by making world-class sat preparation available to anyone , anywhere , we hope to level the playing field so that every student has equal opp...
adding students once you ’ ve created your class and enabled the sat tools , all of the students in that class will automatically get an invitation to share their sat activity with you . the first time they log in to official sat practice after you ’ ve enabled the sat coach tools and added students , they will see a p...
is there any way that i can see my students ' progress ( time spent ) on sat prep activities for a designated period of time ( since the beginning of the semester , for instance ) ?
for the first time ever , students have access to a free , personalized practice program for the sat through an exclusive partnership between khan academy and the college board . by making world-class sat preparation available to anyone , anywhere , we hope to level the playing field so that every student has equal opp...
for each student , this section includes the following items : the amount of time the student has spent on sat practice so far . this updates approximately hourly for `` this week '' the student ’ s progress against their question goals for the week . each student creates their own practice schedule in which they choos...
what 's the cut-off before that data goes to `` last week '' ?