Answer
Perpendicular
Work Step by Step
x-y=-6
-y=-6-x
y=6+x
m=1
x+y=3
y=3-x
m=-1
The pair of lines are perpendicular because the slopes have opposite signs and are reciprocals of each other.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 3 - Review - Page 274: 39
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