Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-6 Parallel and Perpendicular Lines - Practice and Problem-Solving Exercises - Page 332: 33


blue line slope: 0 red line slope: undefined $x= 3$

Work Step by Step

(0,5) and (4,5) $m = (5-5)/(4-0)$ $m = 0/4 = 0$ The blue line has a slope of 0, so the new line is perpendicular to the blue line. The new line has an undefined slope as the new line is completely vertical.
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