Answer
The function is continuous in its entire domain, $(-\infty, +\infty)$.
Work Step by Step
The graph has no holes so the function is continuous in its entire domain.
Thus, the function is continuous in the interval $(-\infty, +\infty)$.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 2 - Graphs and Functions - 2.6 Graphs of Basic Functions - 2.6 Exercises - Page 256: 11
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