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: 7

Answer

y=3x

Work Step by Step

Parallel lines have the same slope so the two equations would have the same slope(3). Use the point(1,3) and the slope and plug them into y=mx+b: y=mx+b 3=3(1)+b -distribute- 3=3+b -subtract 3 from both sides- 0=b The y-intercept is 0 and the slope is 3 so y=3x.
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