### Home > CALC > Chapter 8 > Lesson 8.1.6 > Problem 8-63

8-63.

At which point(s) on

*f*(*x*), graph below, do the following situations occur? Homework Help ✎*f*′(*x*) and*f*′′(*x*) are both positive*f*′(*x*) and*f*′′(*x*) are both negative*f*′(*x*) is positive and*f*′′(*x*) is negative*f*′(*x*) is negative and*f*′′(*x*) is positive

Translation: slope of *f*(*x*) is positive AND *f*(*x*) is concave up.

Refer to the hint in part (a).

Refer to the hint in part (a).

Points *e* and *a*.