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: 4



Work Step by Step

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