Answer
A
Work Step by Step
The slopes of perpendicular lines are negative reciprocals of each other.
The negative reciprocal of $5\frac{1}{5}$ is $-5$.
Thus, the answer is Option (A).
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Entry-Level Assessment - Page xxxviii: 23
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