Answer
False.
Work Step by Step
Take $y=x^2+4$. This is a quadratic function since it fits the form $y=ax^2+bx+c, a \ne 0$. However, it cannot fit the power function form of $y=kx^p$. Therefore, not all quadratic functions are power functions.
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 - Strengthen Your Understanding - Page 489: 1
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