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 - Lesson Check - Page 333: 2



Work Step by Step

You have (3,-1) parallel to y=-4x+1.Since the lines are parallel, they have the same slope (-4). Plug in (3,-1) and the slope (4) into y=mx+b to find the y-intercept: y=mx+b -1=-4(3)+b -1=-12+b 11=b The slope is -4 and the y-intercept is 11. So the equation is y=-4x+11
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