Answer
perpendicular
Work Step by Step
2x-5y=40
5y=2x-40
y=$\frac{2}{5}$-8
-4y=10x+10
y=-$\frac{5}{2}$x-$\frac{5}{2}$
The slopes of these two lines are opposite reciprocals of each other so the lines are perpendicular.
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 1 - Linear Functions - 1.5 Finding Equations of Lines - 1.5 Exercises - Page 76: 49
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