1
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There's a function definition in factor form. Yes?

2
00:00:05;01 --> 00:00:08;01
Yes. Where would this zero be located?

3
00:00:09;01 --> 00:00:12;04
Where would that zero be located?

4
00:00:12;05 --> 00:00:19;07
Well, you know how we saw that  we have this fun little button up here under math that says expand, and then...

5
00:00:19;08 --:> 00:00:20;11
Poof!

6
00:00:21;03 --> 00:00:27;10
You get that. Today we're gonna talk about the poof.
That about what happens.

7
00:00:28;02 --> 00:00:36;11
So, so what does the graphing calculator do when it goes poof?

8
00:00:37;11 --> 00:00:38;11
It puts in the value...

9
00:00:38;12 --> 00:00:44;11
Ok, it changes it from one to the other. It solves it I heard.
What is it solving?

10
00:00:45;08 --> 00:00:46;11
Complicated math

11
00:00:46;14 --> 00:00:49;01
It's actually not that complicated.

12
00:00:51;11 --> 00:00:53;05
What does it do?

13
00:00:53;11 --> 00:00:54;13
Solve

14
00:00:54;14 --> 00:00:56;06
Yeah, but what is there to solve?

15
00:00:56;14 --> 00:00:59;05
The X values and the Y values?

16
00:01:00;12 --> 00:01:04;11
The X values and the Y values, that's what it does when it graphs
it, yes.

17
00:01:04;12 --> 00:01:09;02
It picks up different X values, plugs it in to the Y value and plots all
those points.

18
00:01:09;03 --:> 00:01:13;03
That's how it graphs it, yes, because it takes X values and Y
values

19
00:01:13;04 --> 00:01:17;08
But, what about when it just takes a function definition that looks
like that

20
00:01:17;09 --> 00:01:20;11
and then turns it into a function definition that looks like that?

21
00:01:20;12 --> 00:01:29;08
You've already seen in your experience of actually graphing
these that they are indeed the same functions