Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.5 Finding Equations of Lines - 1.5 Exercises - Page 76: 47



Work Step by Step

2x+3y=15 3y=-2x+15 y=-$\frac{2}{3}$+5 One equation has a slope of -$\frac{2}{3}$ and the other has a slope of $\frac{3}{2}$. These two numbers are opposite reciprocals of each other, therefore, the lines are perpendicular.
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