Answer
$x=4$
Work Step by Step
vertical line, goes through $(4,7)$
vertical lines have undefined slopes, so we have the line $x=4$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 8 - Section 8.1 - Review of Equations of Lines and Writing Parallel and Perpendicular Lines - Exercise Set - Page 572: 22
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