Answer
$f'(x) = 3$
Work Step by Step
$f(x+h)=3(x+h) - 7=3x + 3h -7$
$f(x+h) - f(x) =3x + 3h -7 -3x + 7=3h$
$\frac{f(x+h) - f(x)}{h}=3$
$f'(x) = 3$
The Derivative does exist but we can't find f'(-2), f'(0) and f'(3)
Calculus with Applications (10th Edition)
by Lial, Margaret L.; Greenwell, Raymond N.; Ritchey, Nathan P.
Published by
Pearson
ISBN 10:
0321749006
ISBN 13:
978-0-32174-900-0
Chapter 3 - The Derivative - 3.4 Definition of the Derivative - 3.4 Exercises - Page 176: 11
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