Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 4 - Writing Linear Functions - 4.3 - Writing Equations of Parallel and Perpendicular Lines - Exercises - Page 192: 35

Answer

Sometimes.

Work Step by Step

We determine if two lines are perpendicular or not by comparing the slopes, not by y-intercepts. Two lines with same y-intercept may or may not be perpendicular. But two lines with slopes as negative reciprocals are perpendicular always.
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