### Home > GB8I > Chapter 4 Unit 5 > Lesson INT1: 4.1.3 > Problem4-28

4-28.

If $f\left(x\right)=3-\left|x\right|$ and $g(x)=3^x+5$, then calculate the value of:

1. $f(−5)$

• Substitute $-5$ in for $x$ in the function and then evaluate.

$f(\textit{x})=3-\left | -5 \right |$

$f(-5) = -2$

1. $g(4)$

• Substitute $4$ in for $x$ and then evaluate.

$g(4)=3^{4}+5$

$g(4)=86$

1. $f(0)$

• Substitute $0$ in for $x$ and then evaluate.
See part (a) for more help.

1. $f\left(2\right)$

1. $g\left(1\right)$

1. $g\left(0\right)$

• See part (a) and (b) for help.