CPM Homework Help : PC3 Problem 1-138

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1-138.

Evaluate each expression given the functions described in the tables below.

$x$	0	7	6	5	3
$g(x)$	9	–1	0	3	8

$x$	3	0	12	4	8
$h(x)$	2	8	–2	12	10

$h(g(5))$
Hint (a):
$g(5)=3$

$g^{-1}(0)$
Hint (b):
Determine the input for $g$ that gives an output of $0$ .

$h(h(4))$
Hint (c):
$h(4)=12$ , so determine $h(12)$ .

$g(h^{-1}(8))$
Hint (d):
$h^{−1}(8)=0$ (Why?)

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