Answer
$m_{1}$=$-\frac{3}{2}$
Work Step by Step
The slope of perpendicular lines are the negative reciprocals of each other. So $\frac{2}{3}\times m_{1} = -1$
Therefore $m_{1}$=$-\frac{3}{2}$
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 - Test - Page 492: 8b
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