Answer
See below.
Work Step by Step
$y_1+y_2$ will be above $y_1$ by $y_2$ if $y_2$ is positive.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 4 - Section 4.6 - Graphing Combinations of Functions - 4.6 Problem Set - Page 249: 2
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