Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set: 74

Answer

$5x + 10y = -7$ $5x + 10y = 0$

Work Step by Step

$5x + 10y = -7$ $5x + 10y = 0$ They are perpendicular to $10x - 5y = -7$ because they have a slope of $m_{perpendicular}=-\frac{5}{10}=-\frac{1}{2}$, which is the negative reciprocal of the slope of $10x - 5y = -7$ ($m=2$)
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