Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 3 - Parallel and Perpendicular Lines - 3-8 Slopes of Parallel and Perpendicular Lines - Practice and Problem-Solving Exercises - Page 203: 37

Answer

perpendicular

Work Step by Step

When y is set equal to a number, the equation gives a horizontal line. When x is set equal to a number, the equation describes a vertical line. By definition, horizontal and vertical lines are perpendicular.
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