Answer
neither.
Work Step by Step
Step 1. Replace $x$ with $-x$, we have $f(-x)=(-x)^3-(-x)+9=-(x)^3+(x)+9\ne f(x)$, thus it is not even.
Step 2. Replace $x$ with $-x$, we have $f(-x)=(-x)^3-(-x)+9=-(x)^3+(x)+9\ne-f(x)$, thus it is not odd.
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 - 2.7 Graphing Techniques - 2.7 Exercises - Page 274: 57
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