Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 1 - Section 1.2 - The Rectangular Coordinate System - 1.2 Problem Set - Page 26: 99

Answer

b. counterclockwise, positive x-axis

Work Step by Step

Positive angles are drawn counterclockwise from the positive x-axis and Negative angles are drawn clockwise from the positive x-axis. Thus options a,c and d cannot be true. Hence option b is correct.
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