Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set - Page 238: 47

Answer

a. $m_{parallel}=\frac{9}{11}$. b. $m_{perpendicular}=-\frac{11}{9}$

Work Step by Step

A line parallel to the line that passes through the points (-8, -4) and (3, 5) will have a slope of $m_{parallel}=\frac{5-(-4)}{3-(-8)}=\frac{9}{11}$. A line perpendicular to the line that passes through the points (-8, -4) and (3, 5) will have a slope of $m_{perpendicular}=-\frac{11}{9}$ (the negative reciprocal).
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