Webwork give the x-coordinate of a point where:

a. the derivative of the function is negative: x=

b. the value of the function is negative: x=

c. the derivative of the function is smallest (most negative): x=

d. the derivative of the function is zero: x=

e. the derivative of the function is approximately the same as the derivative at x=2.75 (be sure that you give a point that is distinct from x=2.75! ): x=