Answer
Not linear.
Work Step by Step
We are given:
$f(x)=(2+3x)^{2}$
We distribute:
$9x^{2}+12x+4$
This is not a linear function (does not have the form $f(x)=ax+b$).
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 2, Functions - Chapter 2 Review - Exercises - Page 268: 57
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