Answer
$m = 2$
Work Step by Step
Find the slope ($m$) of the line through $P$ and $Q$.
$P(1,5)$
$Q(4,11)$
$m = \frac{y_2 -y_1}{x_2 - x_1}$
$m = \frac{11-5}{4-1} = \frac63 = 2$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Appendix B - Coordinate Geometry and Lines - B Exercises - Page A15: 7
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