Answer
No, the function is not linear.
Work Step by Step
f(x) = $(x+1)^{2}$ cannot be expressed in terms of f(x) = a + bx and hence, is not linear and not changing by a constant value.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 2 - Section 2.5 - Linear Functions and Models - 2.5 Exercises - Page 195: 13
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