Answer
Yes, $y=7t^{6}-8t+7.2$ is a polynomial to the 6th degree.
Work Step by Step
It is a polynomial because all values are variables with positive integer exponents or are constants.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 11 - Polynomial and Rational Functions - 11.2 Polynomial Functions - Exercises and Problems for Section 11.2 - Exercises and Problems - Page 448: 4
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