Answer
m2= -2
Work Step by Step
Parallel lines l1 and l2 have slopes m1 and m2,respectively,
We need to find out m2 if m1 is equal to
-2
Using Theorem 10.2.1
If two non vertical lines are parallel, then their slopes are equal.
therefore m2= -2
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 10 - Section 10.2 - Graphs of Linear Equations and Slope - Exercises - Page 465: 15c
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