Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.5 - More on Slope - Concept and Vocabulary Check - Page 225: 2

Answer

$-1$

Work Step by Step

Two nonvertical lines that are perpendicular to each other have slopes whose product is $-1$.
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