Answer
It is defined, $f(4)=3\frac{15}{16}$
Work Step by Step
4 is in the domain of f.
$4-\frac{1}{4^2}=4-\frac{1}{16}=3\frac{15}{16}$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 1 - Section 1.1 - Functions from the Numerical, Algebraic, and Graphical Viewpoints - Exercises - Page 52: 9a
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