Precalculus (6th Edition)

by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie

Published by Pearson

ISBN 10: 013421742X

ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.5 Equations of Lines and Linear Models - 2.5 Exercises - Page 247: 85

Answer

See explanations.

Work Step by Step

Based on the result that $m_1m_2=-1$, we can conclude that if two non-vertical lines are perpendicular, then the product of the slopes of these lines is $-1$.

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