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: 34

Answer

(a) $f(9)= 3$ (b) $\\f(2)= -4$

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) $f(9) = 9-6 \\f(9)= 3$ (b) $f(2) = 2 - 6 \\f(2)= -4$
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