Trigonometry (11th Edition) Clone

Published by Pearson

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.5 Polar Equations and Graphs - 8.5 Exercises - Page 394: 28

Answer

(a) We can see the point plotted on the graph below. (b) We can write two pairs of polar coordinates for this point: $(3, 270^{\circ})$ $(-3, 90^{\circ})$

Work Step by Step

$(0, -3)$ (a) We can see the point plotted on the graph below. (b) $r = \sqrt{(0)^2+(-3)^2} = 3$ The angle $x$ is $270^{\circ}$ counter-clockwise from the positive x-axis. We can write two pairs of polar coordinates for this point: $(3, 270^{\circ})$ $(-3, 90^{\circ})$

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