Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.5 Equations of Lines and Linear Models - 2.5 Exercises - Page 242: 3



Work Step by Step

RECALL: A vertical line has an equation in the form $x=h$ where $h$ is a real number. All points on the line have an x-coordinate of $h$. The given vertical line contains the point $(-4, 8)$. The x-coordinate of this point is $-4$. Thus, the equation of the vertical line is $x=-4$. Therefore, the missing expression in the given statement is: $x$
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