### Home > CALC > Chapter 3 > Lesson 3.2.2 > Problem 3-60

3-60.

Differentiate the following expressions. Homework Help ✎

*f*(*x*) = (−3*x*^{7}− 6*x*)*f*(*x*) = (5*x*^{−4})*f*(*x*) =*m*

*f* '(*x*) = −21*x*^{6} − 6

Refer to hint in part (b).

*m* is a constant. What is the slope of the a

horizontal line *y* = *m*?