Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 7 - Algebra: Graphs, Functions, and Linear Systems - 7.1 Graphing and Functions - Exercise Set 7.1 - Page 418: 36

Answer

(a) $f(7)=25$ (b) $\\f(0)=-3$

Work Step by Step

RECALL: $f(a)$ represents the value of the function $f$ when $x=a$. Replace $x$ with the given value to obtain: (a) $f(7) = 4(7)-3 \\f(7)= 28-3 \\f(7)=25$ (b) $f(0) = 4(0) -3 \\f(0)= 0-3 \\f(0)=-3$
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