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 is always positive.
. . The graph is always increasing.
Second derivative: .
Inflection point when
If . . . positive, concave up
If . . . negative, concave down