#### Answer

horizontal

#### Work Step by Step

RECALL:
The graph of an equation of the form $y=k$ is a horizontal line.
The given equation, $y=3$, has $k=3$.
Thus, the graph of this equation is a horizontal line.

Published by
Pearson

ISBN 10:
0-13446-914-3

ISBN 13:
978-0-13446-914-0

horizontal

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