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Mathematics
Mathematics
Problem
On the interval
[
−
1
,
2
]
[-1,2]
[
−
1
,
2
]
, the average value of the function
f
(
x
)
=
x
2
+
c
f(x)=x^{2}+c
f
(
x
)
=
x
2
+
c
is 5. What is the value of
c
c
c
? a)
2
3
\dfrac23
3
2
b)
4
4
4
c)
7
2
\dfrac72
2
7
d)
19
4
\dfrac{19}{4}
4
19
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