Answer
Circles, rays
Work Step by Step
To plot points in polar coordinates, we use a grid consisting of $\text{}{circles}$ centered at the pole and $\text{}{rays}$ emanating from the pole.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 8 - Section 8.2 - Graphs of Polar Equations - 8.2 Exercises - Page 600: 1
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