CPM Homework Help : INT2 Problem 5-43

Based on the tables below, what are the $x$ - and $y$ -intercepts of the corresponding graphs? Use the fact that the relationship shown in the table in part (b) is quadratic to write an equation to represent the relationship.

$x$
$y$
$3$
$0$
$0$
$16$
$–5$
$0$
$–1$
$–8$
$6$
$22$
$3$
$0$

$x$	$y$
$3$	$0$
$0$	$16$
$–5$	$0$
$–1$	$–8$
$6$	$22$
$3$	$0$

$x$
$y$
$7$
$–27$
$1$
$0$
$10$
$–67.5$
$0$
$–2.5$
$2.5$
$0$
$–7$
$–76$

$x$	$y$
$7$	$–27$
$1$	$0$
$10$	$–67.5$
$0$	$–2.5$
$2.5$	$0$
$–7$	$–76$

$x$
$y$
$0$
$–16$
$–5$
$11$
$3$
$–2$
$8$
$0$
$13$
$27$
$–6$
$14$

$x$	$y$
$0$	$–16$
$–5$	$11$
$3$	$–2$
$8$	$0$
$13$	$27$
$–6$	$14$

Hint:

The $x$ -intercept occurs when $y = 0$ and the $y$ -intercept occurs when $x = 0$ .