Question

I need help understanding it. The notes my teacher gave me aren't helping

Answer 1

Because this is x^2 it will be a parabola. The easiest way to do this (when given in standard form) is to go to your table function on your graphing calculator. You can tell what the vertex is because the y value will repeat (1, 0, 1).

So here is some of the table

0  9
1  4
2  1
3  0
4  1
5  4
6  9
7  16

So first plot the vertex (4,1) and then plot some of the other points on the graph and connect the dots.

Answer 2

I believe you go on the x-axis on -6 and go up to 9. I could never be certain for I just learned this but I believe that is what it is..