Answer
$g(k)=-k^2+4k+1$
Work Step by Step
To find the value of $g(k)$, substitute $k$ to $x$ in $g(x)$ to obtain:
$g(x)=-x^2+4x+1
\\g(k)=-k^2+4(k)+1
\\g(k)=-k^2+4k+1$
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 - 2.3 Functions - 2.3 Exercises - Page 216: 60
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