Datasets:
NationalTutoringObservatory
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MathEd-PII

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8
student
Yeah.
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volunteer
So it would be that's it, so like for here it's -8, right?
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student
Mhm.
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volunteer
So it would be -8, but then it would be plus and minus 5i. So if it's -8-5i, that would mean that there has to be a negative.
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student
What?
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volunteer
+5i
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student
We're just changing the sign?
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student
That's all it is
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volunteer
Yes, you would be changing the sign of whatever value, yep.
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student
Oh
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volunteer
If it's a conjugate pair, it just means that
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volunteer
it is
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volunteer
like that
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student
Mm.
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student
He is scry.
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volunteer
So what would this one be? -5 + 4i, that means there has to be a -5-4i. Good.
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student
I hate grapping
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volunteer
Oh no
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student
I don't know. I don't know how to find like equations from graphs like this, like.
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volunteer
Oh, no problem. Here. Uh, can I see the equation for a second? I also apologize, the laptop that I'm currently using is half broken, so I have to reserve you to one side of the screen.
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student
OK
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volunteer
And it can, can you scroll up so I can see the question?
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volunteer
There we go. The which Aras in choice could represent the graph below. All right, so, so do you know what type of graph this is?
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student
Um
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student
uh, a quadratica.
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volunteer
Good. So then what would it be?
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volunteer
Like what would the degree be
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student
2
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volunteer
or the leading term be in this?
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volunteer
Not 2, but you remember, so if it's a square, if it's a quadratic graph, that means the highest it goes is 2, right?
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student
Yeah
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volunteer
All right. So if we scroll down to the answers.
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volunteer
OK, and then for this, right?
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volunteer
So you see how
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volunteer
you see how it crosses at -6 and then 1.
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student
4
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student
6
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volunteer
So like if it's expanded like that, it, it basically already tells you the zeros of the function. So yeah, you would just find which ones it would equal -6 and then 1.
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student
This is not part because
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student
cute.
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volunteer
Now, that would be a cubed graph. That would be if it also crossed at 0
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volunteer
Does that make sense
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student
Yes, I'm, I made a lot of sense.
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volunteer
Good
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volunteer
So let's have you on this one.
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volunteer
So where does it cross at
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student
The good face
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student
8 and
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student
0
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volunteer
Mhm.
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student
will be
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student
2.
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volunteer
So do you see how it says X minus 64?
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student
Yeah, that's 8 and 8
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volunteer
Yeah, because that would be a perfect square, right?
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student
Yeah, but like,
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student
what?
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student
um, what's his name?
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student
Like, what is this like, like why is there like, how do you find what the zero is like.
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volunteer
Well, you said that it's -8 and 8, right?
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student
Yeah, but the 0
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volunteer
So what would the 0 be? Look on, look on the first two.
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volunteer
You see how it's just X
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student
Yeah, but like, wouldn't it be cute?
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volunteer
Yeah, that is a cubed graph
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student
Oh, this, oh.
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student
Yeah
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volunteer
You see how it goes up and then down and then up. You see how the, the um degree of the graph is how many times it crossed or how many times it can cross the x-axis.
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student
Oh, I see um.
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volunteer
So if it if it can cross the x-axis 4 times. That means it's a
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student
The the
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student
do more
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volunteer
or power.
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volunteer
But see how this can only cross 3 times, like no matter what you put it as.
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student
Yeah
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volunteer
Oh, it is a cubed graph
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volunteer
and it crosses at 88 and then that X on the outside is 0.
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volunteer
Which equation represents the graph shown below. OK, so you see how it, um, dips and then comes back up, not crossing the x-axis, but touching it.
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volunteer
on -3 and 6
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volunteer
you see how it like does a quadratic on top of it.
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volunteer
Can you hear me
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student
Yeah
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volunteer
Oh, sorry. You're, it seems like your mic cut out a little bit. Can you hear me?
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volunteer
Mm
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volunteer
One second, I'm gonna go down.
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student
Hello
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volunteer
It seems to use hello. Yes, now I can hear you.
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student
I might, I might cuddle.
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volunteer
No, no problem. Uh, you did stop sharing your screen though.
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student
Oh.
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student
I mean, it's that
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volunteer
So just tell me when you're sharing your screen again.
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student
Hello
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volunteer
Hello, I can hear you
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volunteer
Oh, you are kind of muffled though.
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student
Yes, I'm trying to
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student
you know.
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student
but it's not
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student
po pp ing up.
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student
s
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