role stringclasses 2
values | content stringlengths 0 2.1k | session_id int64 10 21.7k | sequence_id int64 0 2.38k | annotations listlengths 0 8 |
|---|---|---|---|---|
volunteer | domain and range okay. | 18,871 | 26 | [] |
volunteer | so for the domain first we would have to factor and simplify the function | 18,871 | 27 | [] |
volunteer | as you can see the problem factored and got 3x+1/x+3 | 18,871 | 28 | [] |
student | ohhhh okay so how would i get the 5/3 | 18,871 | 29 | [] |
volunteer | to find the range you would need to solve for x | 18,871 | 30 | [] |
volunteer | so you see how you have the function | 18,871 | 31 | [] |
student | okay | 18,871 | 32 | [] |
student | now HERE is where i really struggle at tbh | 18,871 | 33 | [] |
volunteer | okay which one do you need help with specifically? | 18,871 | 34 | [] |
student | how would i know what to right when it says approaching from the left or right if its looks like the same thing | 18,871 | 35 | [] |
student | write* | 18,871 | 36 | [] |
student | for example 1 | 18,871 | 37 | [] |
volunteer | so when you are approaching the limit from the right side it literally means from the right side | 18,871 | 38 | [] |
volunteer | for example for part D | 18,871 | 39 | [] |
volunteer | it says find the limit as x approaches 2 from the right | 18,871 | 40 | [] |
volunteer | you would look at the x value 2 | 18,871 | 41 | [] |
volunteer | and see what y value it approaches from the right side | 18,871 | 42 | [] |
volunteer | you can see its a value of 1 | 18,871 | 43 | [] |
volunteer | does that make sense? | 18,871 | 44 | [] |
student | ohhhh okay so what about part L | 18,871 | 45 | [] |
student | like how did we get that answer | 18,871 | 46 | [] |
volunteer | L would be 1 | 18,871 | 47 | [] |
volunteer | because 1 is your limit | 18,871 | 48 | [] |
volunteer | oh wait | 18,871 | 49 | [] |
volunteer | you are talking about part L | 18,871 | 50 | [] |
volunteer | sorry i misunderstood | 18,871 | 51 | [] |
student | ur good!!! | 18,871 | 52 | [] |
volunteer | okay so for part L | 18,871 | 53 | [] |
volunteer | in order for the limit to exist we have to make sure that both sides (aka limit as x approaches 5 form the left and limit as x approaches 5 from the right) are the same | 18,871 | 54 | [] |
volunteer | that way the limit as x approaches 5 can exist | 18,871 | 55 | [] |
volunteer | so if you look on the left and right side of 5 do they both approach the same value? | 18,871 | 56 | [] |
student | oh Okay i see so i would look at the arrow going down right? | 18,871 | 57 | [] |
volunteer | yes you would! | 18,871 | 58 | [] |
student | okay i think im getting the hang of it | 18,871 | 59 | [] |
volunteer | yup! | 18,871 | 60 | [] |
student | OKAY NOW THISSSSS | 18,871 | 61 | [] |
student | is crazy | 18,871 | 62 | [] |
volunteer | ah finding the limit numerically | 18,871 | 63 | [] |
student | i would just use the calculator for this though right ??? | 18,871 | 64 | [] |
volunteer | yes you would | 18,871 | 65 | [] |
volunteer | but do you understand what the values mean? | 18,871 | 66 | [] |
student | tbh no.. | 18,871 | 67 | [] |
volunteer | okay lets go over it | 18,871 | 68 | [] |
student | okay | 18,871 | 69 | [] |
volunteer | so the question is asking to find the limit as x approaches 3 of that function | 18,871 | 70 | [] |
volunteer | and if you notice when you plug in 3 you get undefined | 18,871 | 71 | [] |
volunteer | so plugging in 3 would not work | 18,871 | 72 | [] |
student | yes | 18,871 | 73 | [] |
volunteer | we could estimate the limit using values super close to 3 | 18,871 | 74 | [] |
student | ohhhh okay | 18,871 | 75 | [] |
student | i see | 18,871 | 76 | [] |
volunteer | so you use numbers super close to 3 and plug it in | 18,871 | 77 | [] |
student | thats the whole point correct | 18,871 | 78 | [] |
student | to find which one is closet | 18,871 | 79 | [] |
volunteer | from the right and left side if they approach the same value the limtit would be that value | 18,871 | 80 | [] |
volunteer | yes | 18,871 | 81 | [] |
volunteer | you have to make sure that the f(x) is approaching the same number | 18,871 | 82 | [] |
student | wait huh? | 18,871 | 83 | [] |
volunteer | at x = 2.999 and x = 3.001 | 18,871 | 84 | [] |
student | f(x) is approashing what | 18,871 | 85 | [] |
volunteer | f(x) is the value you get after plugging in those super close numbers | 18,871 | 86 | [] |
volunteer | f(x) is the limit | 18,871 | 87 | [] |
student | ohhh ookkk | 18,871 | 88 | [] |
volunteer | at 2.999 and at 3.001 those values are approaching the same limit | 18,871 | 89 | [] |
volunteer | so thats why it works | 18,871 | 90 | [] |
student | Okay i see now | 18,871 | 91 | [] |
student | wait can i go check 1.1 really quick to see if i need help understanding to | 18,871 | 92 | [] |
volunteer | yes! | 18,871 | 93 | [] |
student | okay the only question I have about this problem is how would i put this into the calcukator | 18,871 | 94 | [] |
volunteer | ok so for this one its asking for average velpcioty from 2 seconds to 8 seconds | 18,871 | 95 | [] |
volunteer | do you recall the average velocity formula? | 18,871 | 96 | [] |
student | distance/time ? | 18,871 | 97 | [] |
student | sum like det | 18,871 | 98 | [] |
volunteer | right | 18,871 | 99 | [] |
volunteer | its the change in displacement/time | 18,871 | 100 | [] |
student | okk | 18,871 | 101 | [] |
volunteer | so that means we to find d(8) - (d(2))/ (8-2) | 18,871 | 102 | [] |
volunteer | sorry (d(8) - d(2))/(8-2) | 18,871 | 103 | [] |
volunteer | do get d(8) you would plug 8 into the distance equation | 18,871 | 104 | [] |
volunteer | and same for 2 | 18,871 | 105 | [] |
student | okayyy i remember that part | 18,871 | 106 | [] |
student | so thats all im findning | 18,871 | 107 | [] |
student | right or | 18,871 | 108 | [] |
volunteer | yes and you put it all together into the average velocity formula | 18,871 | 109 | [] |
volunteer | and remember your units | 18,871 | 110 | [] |
student | okkkkk thats smart! | 18,871 | 111 | [] |
student | okay wait so how would i even start by making a sketch for a problem based on limits n stuff | 18,871 | 112 | [] |
student | because I rmb we did it in class but i dnt know about a problem pretaining to it | 18,871 | 113 | [] |
volunteer | interesting is this still on limits? or is this for derivatives | 18,871 | 114 | [] |
student | limits i think | 18,871 | 115 | [] |
student | tbh im not sure | 18,871 | 116 | [] |
volunteer | oh wait sorry i misread that v means vehicles not velocity in this context | 18,871 | 117 | [] |
student | ok | 18,871 | 118 | [] |
volunteer | just give me a second to figure out this problem | 18,871 | 119 | [] |
student | no problem, take ur time | 18,871 | 120 | [] |
volunteer | okay! | 18,871 | 121 | [] |
volunteer | so you need help with part b right? | 18,871 | 122 | [] |
student | yes | 18,871 | 123 | [] |
volunteer | okay so for this we are just graphing the time vs the number of vehicles | 18,871 | 124 | [] |
volunteer | so at each time there would be some number of vehicles | 18,871 | 125 | [] |
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