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: 29

Answer

Sometimes

Work Step by Step

Lines are parallel when the two slopes are the same. Thus, if the lines have the same positive slope, they will be parallel. However, if the lines have different positive slopes, then the lines will not be parallel.
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