Hello, katieeej!

You're expected to know about the derivatives:

. .

This one is easier to differentiate if we eliminate the negative exponent.Determine where each function is increasing, decreasing, concave up, and concave down.

Multiply top and bottom by

First derivative: .

This expression isalways positive.

. . The graph isalways increasing.

. .

Second derivative: .

Inflection point when

If . . . positive, concave up

If . . . negative, concave down

. .