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Let ,
where is the graph in the figure.
Find each of the following:
A.
B.
C.
The interval (with endpoints given to the nearest 0.25) where
is concave up:
interval =
(Give your answer as an interval or a list of intervals,
e.g., (-infinity,8] or
(1,5),(7,10), or enter
none for no intervals.)
D.
The value of where takes its maximum on the interval
.
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 Graph of |