Answer
1
Work Step by Step
$\frac{1-4}{-2-1}$ = $\frac{-3}{-3}$
-3 $\div (-3)$ = 1
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 3 - Parallel and Perpendicular Lines - 3-6 Constructing Parallel and Perpendicular Lines - Practice and Problem-Solving Exercises - Page 188: 46
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