Precalculus (6th Edition) Blitzer

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


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.
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