Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 3 - Introduction to Graphing - 3.3 Graphing and Intercepts - 3.3 Exercise Set - Page 180: 68

Answer

Refer to the graph below.

Work Step by Step

The graph of an equation of the form $x=h$ is a vertical line whose x-intercept is $(h, 0)$. Each point on the line has an x-coordinate of $h$. Thus, the graph of $x=20$ is a vertical line whose x-intercept is $(20, 0)$. Each point on the line has an x-coordinate of $20$. This means that the following points are all on the line: $(20, -2)$, $(20, 0)$, and $(20, 2)$ Plot the three points listed above then connect them using a line to complete the graph. (refer to the attached image in the answer part above for the graph)
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