Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.5 Polar Equations and Graphs - 8.5 Exercises - Page 388: 23

Answer

(a) We can see the point plotted on the graph below. (b) We can write two pairs of polar coordinates for this point: $(3, 0^{\circ})$ $(-3, 180^{\circ})$

Work Step by Step

$(3, 0)$ (a) We can see the point plotted on the graph below. (b) $r = \sqrt{(3)^2+(0)^2} = 3$ Since the point is on the positive x-axis, the angle $\theta = 0^{\circ}$ We can write two pairs of polar coordinates for this point: $(3, 0^{\circ})$ $(-3, 180^{\circ})$
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