Answer
See graph and explanations.
Work Step by Step
Given $y=3cos(2x+\pi)$, we can find its amplitude as $A=3$, period as $p=\frac{2\pi}{2}$, and phase shift as $\phi=-\frac{\pi}{2}$. We can graph the function as shown in the figure.
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 6 - Section 6.1 - The Law of Sines - Exercise Set - Page 723: 78
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