Answer
No, because some lines have an undefined slope.
Work Step by Step
No. In the case that the slope is undefined, we need to write the line equation in the form of $x=a$ where $a$ is the $x$-intercept.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 1 - Graphs - 1.3 Lines - 1.3 Assess Your Understanding - Page 34: 138
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