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Mathematics
Mathematics
Problem
For a differentiable function
f
f
f
whose derivative is given by
f
′
(
x
)
=
x
2
−
4
x
+
4
f'(x)=x^{2}-4x+4
f
′
(
x
)
=
x
2
−
4
x
+
4
, which of the following
x
x
x
-values is a critical number of
f
f
f
? a)
x
=
0
x=0
x
=
0
b)
x
=
4
x=4
x
=
4
c)
x
=
2
x=2
x
=
2
d)
x
=
−
2
x=-2
x
=
−
2
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