Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 2 - Review - Test - Page 235: 7

Answer

a) $g(x)$ is linear. $f(x)$ isn't linear because it has a 2nd degree of a polynomial ($x^2)$. b) See graph c) $-5$

Work Step by Step

a) Linear functions have only 1 degree of a polynomial, meaning that its variable is $x^1$. $f(x)$ isn't linear since its maximum degree of a polynomial is 2 ($x^2$). b) See graph c) The rate of change of a linear function is also its slope which is the constant of the variable $x$. In this case, it is $-5$
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