Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 1 - Graphs - 1.3 Lines - 1.3 Assess Your Understanding - Page 30: 12



Work Step by Step

A graph where $y$ is equal to a constant will give you a graph where every $x$ value, be it 0 or 100, has the same $y$ value ($-3$ in this case) which creates a horizontal line at that y value. The y-intercept of the line $y=k$ is $k$. Thus, the answer is Option $(c)$.
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