Answer
See graphs below. They are all decreasing exponential functions.
Work Step by Step
They are all exponential functions, $y=c^x$ (where $c$ is a constant). If $0\lt c \lt 1$, the graph decreases, which they all do here.
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
Chapter 1 - Section 1.4 - Exponential Functions - 1.4 Exercises - Page 53: 10
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