Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-6 Parallel and Perpendicular Lines - Practice and Problem-Solving Exercises - Page 334: 8



Work Step by Step

Parallel lines have the same slope so the two equation's slope is -1. Plug in the point (2,-2) and the slope into y=mx+b to find the y-intercept: -2=-1(2)+b -distribute- -2=-2+b -add 2 to both sides- 0=b The y-intercept is 0 and the slope is -1 so the equation is y=-x
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