Answer
$(-\infty, 4]$
Work Step by Step
The graph peaks at $y=4$ and goes infinitely far down.
This means that the function includes all y-values that are less than or equal to $4$.
Thus, the range of $f$ is $(-\infty, 4]$.
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 2 - Mid-Chapter Check Point - Page 135: 12
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