Answer
$1$
Work Step by Step
$f(-1)$ is calculated by substituting $-1$ for $x$ in the definition of $f$, and evaluating.
$f(-1)=\displaystyle \frac{1}{(-1)+2}=\frac{1}{1}=1$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 12 - Exponential Functions and Logarithmic Functions - 12.5 Common Logarithms and Natural Logarithms - 12.5 Exercise Set - Page 818: 77
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