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)
$f(2) = 2 - 6
\\f(2)= -4$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
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: 34
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