Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 10 - Review Exercises - Page 485: 11a

Answer

perpendicular

Work Step by Step

x+3y = 6 y = $\frac{-x}{3}$ + 2 3x-y = -7 y=3x+7 The equations have a slope whose product is -1 therefore the lines are perpendicular.
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