Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 11 - Polynomial and Rational Functions - 11.4 Rational Functions - Exercises and Problems for Section 11.4 - Exercises and Problems - Page 461: 2


Not rational

Work Step by Step

We see the terms $4^x$ and $3^x$, which do not cancel out. Thus, the expressions in the numerator and the denominator are not polynomials, meaning that this is not a rational expression.
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