Answer
Parallel
Work Step by Step
$3x+y=7$
$y=-3x+7$
$-3x-y=10$
$y=-3x-10$
The coefficients of $x$ for both equations are the same. This means the two equations have the same slope. Thus this pair of lines is parallel.
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: 40
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