Answer
True.
Work Step by Step
Please note that the maximum value of the function $f(x)=A \sin x$ is $|A|$. So the maximum value of the function $y=-2 \cos x +5$ is $|-2|+5=7$.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.5 - Graphs of Sine and Cosine Functions - Concept and Vocabulary Check - Page 595: 9
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