Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 9 - Polar Coordinates; Vectors - 9.4 Vectors - 9.4 Assess Your Understanding - Page 606: 5

Answer

horizontal, vertical

Work Step by Step

$i$ is the x-axis (which is horizontal), $j$ is the y-axis(which is vertical) in the xy-plane, hence the answer is horizontal, vertical
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