Determine the concavity of the function (and whether it increase and decreases) using interval chart. Interval chart should include both first/second derivates signs to determine if its positive or negative:

(6x22)/x3.

fixed

Given Information:

First derivate:f(x)=(6x2+6)/x4

Second Derivate:f(x)=(12x224)/x5

x-intercepts: (1/3),(1/3)

Critical Points:

(1,4) - local max

(-1,-4) - local min