### Home > CC3MN > Chapter 3 Unit 3 > Lesson CC3: 3.1.3 > Problem3-28

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
1. Explain in words what is done to the input value, $x$, to produce the output value, $y$.

If you multiply $x$ by $−3$, you get $y$.

2. Write the process you described in part (a) in algebraic symbols.

$-3x=y$