Answer
$x=5$.
Work Step by Step
If the line is vertical, then the equation must be $x=m$. $(5,-3)$ is on the line, hence $x=5$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 4 - Polynomial and Rational Functions - 4.2 Properties of Rational Functions - 4.2 Assess Your Understanding - Page 199: 67
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