### Home > CALC > Chapter Ch3 > Lesson 3.4.3 > Problem 3-180

3-180.

Let *f* be the function given by *f*(*x*) = *x*^{3} − 3*x*^{2} − 24*x* + *k* where *k* is a constant. On what intervals is *f* increasing? Homework Help ✎

*f*(*x*) increases when *f* '(*x*) > 0.

Refer to the hints in problem 3-149 for more guidance.