00:01
All right, let's take a look at this graph.
00:05
And it looks like we have a cubic polynomial, and it crosses the x -axis three times.
00:12
Now, where it crosses the x -axis at is going to be our x -intercepts, or sometimes we call those zeros.
00:20
And those zeros are at a, we have one at c, and we have one at e.
00:29
All right, and so three x intercepts on this graph.
00:34
Now, my other two points i have are b and i have d.
00:38
Now, b, point b, now see how this kind of makes a hill on the graph? anything that's a hill, we're going to call a relative max...