f(x) is decreasing at the point, because f'(x) is negative.

f(x) is decreasing at the point, because f'(x) is positive.

f(x) is increasing at the point, because f'(x) is positive.

f(x) is flat at the point, because f'(x) is zero.

Increasing. on the interval .

Decreasing. on the interval .

Increasing. on the interval .

Decreasing. on the interval .

Cannot be determined from the information provided

Increasing. on the interval .

Decreasing. on the interval .

Increasing. on the interval .

Decreasing. on the interval .

Cannot be determined from the information provided

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