Answer
$-\frac{9}{5} $
Work Step by Step
Find the slope ($m$) of the line through $P$ and $Q$.
$P(-1,6)$
$Q(4,-3)$
$m = \frac{y_2 -y_1}{x_2 - x_1}$
$m = \frac{-3-6}{4-(-1)} = -\frac{9}{5} $
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
APPENDIX B - Coordinate Geometry and Lines - B Exercises - Page A 15: 8
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