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Mathematics
Problem
The derivative
f
′
f'
f
′
of a twice-differentiable function
f
f
f
is increasing on
(
−
∞
,
−
2
)
(-\infty,-2)
(
−
∞
,
−
2
)
, decreasing on
(
−
2
,
5
)
(-2,5)
(
−
2
,
5
)
, and increasing on
(
5
,
∞
)
(5,\infty)
(
5
,
∞
)
. Identify the intervals on which the graph of
f
f
f
is concave down and state the
x
x
x
-coordinates of all points of inflection.
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