Question: f ( x ) = ( x 2 ) ( x + 2 ) 3 f ( x ) = 4 ( x 1 )

f(x)=(x2)(x+2)3 f(x)=4(x1)(x+2)2 f(x)=12x(x+2)

Determine the open intervals on which f is concave upward or concave downward.

Interval:

Test Value:

Sign:

Conclusion:

Find the point(s) of inflection (give the x-value).

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