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Mathematics
Mathematics
Problem
Let
f
(
x
)
=
x
2
−
6
x
+
5
f(x)=x^{2}-6x+5
f
(
x
)
=
x
2
−
6
x
+
5
with codomain
[
−
4
,
∞
)
[-4,\infty)
[
−
4
,
∞
)
. To make
f
f
f
bijective onto this codomain while retaining the point
x
=
2
x=2
x
=
2
in its domain, which of the following intervals should be chosen as the domain of
f
f
f
? a)
[
2
,
∞
)
[2,\infty)
[
2
,
∞
)
b)
(
−
∞
,
3
]
(-\infty,3]
(
−
∞
,
3
]
c)
[
3
,
∞
)
[3,\infty)
[
3
,
∞
)
d)
(
−
∞
,
3
)
(-\infty,3)
(
−
∞
,
3
)
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