### Home > CC3MN > Chapter 3 > Lesson 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.

$-3x=y$