CPM Homework Help : AC Problem 3-28

Copy the table below onto your paper and use your pattern skills to complete it.

IN (x)	$2$	$10$	$0$	$7$	$−3$		$−10$	$100$	$x$
OUT (y)	$−6$	$−30$	$0$			$15$

Explain in words what is done to the input value, $x$ , to produce the output value, $y$ .
Answer (a):
If you multiply $x$ by $−3$ , you get $y$ .
Write the process you described in part (a) in algebraic symbols.
Answer (b):
$−3x=y$

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: 3-28 HW eTool (Desmos)