Answer
Decreasing
Work Step by Step
Since the increasing of $ x $ leads to the decreasing of $(1/2)^x $, then the function
$$ f(x)=\left( \frac{1}{2}\right)^x.$$ is decreasing.
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 1 - Precalculus Review - 1.3 The Basic Classes of Functions - Preliminary Questions - Page 22: 4
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