Friday
August 29, 2014

Homework Help: Math

Posted by Mike on Monday, December 6, 2010 at 10:18pm.

Consider the equation below. (Round the answers to three decimal places. If you need to use -infinity or infinity, enter -INFINITY or INFINITY.)
f(x) = 9 sqrt(xe*^(-x)

(a) Find the interval on which f is increasing.
( , )

Find the interval on which f is decreasing.
( , )

(b) Find the local maximum value of f.


(c) Find the inflection point.
( , )

Find the interval on which f is concave up.
( , )

Find the interval on which f is concave down.(,)

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