Exercise 4 Page 526

We want to determine whether the relationship between the variables in the given table is a direct variation, an inverse variation, or neither.

$x$	$y$
$22$	$104$
$35$	$174$
$48$	$239$
$54$	$269$

We see that as $x$ increases, $y$ also increases. This might be a direct variation relationship. Let's see what happens if we plot the points on a coordinate plane.