Precalculus (6th Edition) Blitzer

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 - Exercise Set - Page 597: 90


Please see below.

Work Step by Step

Please note that a sine function of the form $y=A \sin (Bx-C)$ has amplitude $|A|$, which forces the graph of the function to lie between $y=-|A|$ and $y=|A|$.
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