Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 6 - Review Exercises - Page 798: 26



Work Step by Step

Step 1. See plot. Move to $\theta=-\frac{\pi}{2}$, then $r=-4$ to get the point. Step 2. Using the formulas $x=r\ cos\theta$ and $y=r\ sin\theta$, we have $x=-4cos(-\frac{\pi}{2})=0$ and $y=-4sin(-\frac{\pi}{2})=4$, giving a point $(0,4)$
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