CPM Homework Help : INT1 Problem 4-28

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4-28.

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

$f(−5)$

Hint (a):
Substitute $-5$ in for $x$ in the function and then evaluate.
Step (a):
$f(\textit{x})=3-\left | -5 \right |$
Answer (a):
$f(-5) = -2$

$g(4)$

Hint (b):
Substitute $4$ in for $x$ and then evaluate.
Step (b):
$g(4)=3^{4}+5$
Answer (b):
$g(4)=86$

$f(0)$

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

$f\left(2\right)$

$g\left(1\right)$

$g\left(0\right)$

Hint (d-f):
See part (a) and (b) for help.

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