#### Answer

(a) $f(8)= 4$
(b) $f(1)= -3$

#### 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)
$f(8) = 8-4
\\f(8)= 4$
(b)
$f(1) = 1 - 4
\\f(1)= -3$

Published by
Pearson

ISBN 10:
0321867327

ISBN 13:
978-0-32186-732-2

(a) $f(8)= 4$
(b) $f(1)= -3$

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