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2-151.

Find the $x$- and $y$-intercepts for the following parabolas.

1. $y = (x + 12)^2 − 144$

To find the $x$-intercepts, substitute $0$ for $y$, and solve for $x$.
To find the $y$-intercepts, substitute $0$ for $x$, and solve for $y$.

$x$-intercepts: $(0,0),(−24,0)$
$y$-intercept: $(0,0)$

1. $y = (x − 8)^2 − 4$

Refer to part (a).