Answer
makes sense
Work Step by Step
This statement makes sense because $y=-A\ sin(Bx)$ is a reflection of the graph of the original equation about the x-axis and $y=A\ sin(-Bx)=-A\ sin(Bx)$$
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 - Exercise Set - Page 598: 113
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