Home > AC > Chapter 8 > Lesson 8.1.2 > Problem8-18

8-18.

Graph $y=x^2-9$ on graph paper.

1. Name the $y$-intercept. What is the connection between the $y$-intercept and the rule $y=x^2-9$?

The $y$-intercept is where $x = 0$.
$y=\left(0\right)^2-9$

1. Name the $x$-intercepts. What is the connection between the $x$-intercepts and the rule $y=x^2-9$?

The $x$-intercepts are where $y = 0$.
$0=x^2-9$