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 - Page 237: 37

Answer

The lines are perpendicular.

Work Step by Step

$y=\frac{2}{9}x+3, m=\frac{2}{9}$ $y=-\frac{2}{9}x,m=\frac{2}{9}$ $\frac{2}{9}\times-1=-\frac{2}{9}$ If two lines are perpendicular the slopes are the same with a different sign(-,+) . This also means that one multiplied by -1 equals the other.
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