### Home > PC3 > Chapter 1 > Lesson 1.3.3 > Problem1-139

1-139.

Given $f\left(x\right)=\frac{1}{x}+20$, write an equation for each of the following function operations

1. $3f(x)$

Multiply each term by $3$.

1. $-2f(x)$

Multiply each term by $−2$.

1. $\frac { f ( x ) } { 5 }$

Divide each term by $5$.

1. $f\left(\frac{x}{5}\right)$

$f\Big(\frac{x}{5}\Big)=\frac{1}{\Big(\frac{x}{5}\Big)}+20$