Answer
a) 6, b) $x \leq 4$
Work Step by Step
Given: $f9x)=\sqrt{8-2x}$
a) Need to find $f(-14)$
$f(-14)=\sqrt{8-2(-14)}=\sqrt{36}=6$
b) Domain can be determined as follows:
$8-2x\geq 0$
or, $-2x\geq -8$
or, $2x \leq 8$
Thus, $x \leq 4$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 7 - Test - Page 578: 1
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