College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.5 - Page 410: 124

Answer

Makes sense

Work Step by Step

The rules for finding the horizontal asymptote of rational function is as follows: 1. If the numerator's degree is less than the denominator's degree, there is a horizontal asymptote at $y = 0$. 2. If the numerator's degree equals the denominator's degree, there is a horizontal asymptote at $y = c$, where $c$ is the ratio of the leading terms or their coefficients. 3. If the numerator's degree is more than the denominator's degree, then there is no horizontal asymptote. $f(x)=\frac{1.96x+3.14}{3.04x+21.79}$ In this case, the degree of the numerator is equal to the degree of the denominator. Therefore, the horizontal asymptote is as follows $y=\frac{1.96}{3.04}=\frac{1.96}{3.04}\times 100=0.6447\times 100=64.47\%$. meaning, the percentage of the prisoner approaches $64.47\%$ as time goes on or may even cross it. As $64.47>60$ the statement makes sense.
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