Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Section 5.1 - Introduction to Polynomials and Polynomial Functions - Exercise Set - Page 324: 12



Work Step by Step

RECALL: $f(a)$ represents the value of the function $f$ when $x=a$. Thus, $f(4)$ represents the value of the function $f$ when $x=4$. Substitute $4$ to $x$ in the function $f$ to obtain: $f(4) = 4^2-5(4)+6 \\f(4)=16-20+6 \\f(4)=-4+6 \\f(4)=2$
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