the average rate of change of f(x) is 2 on the interval from x=3 to x=6. Which of these could describethe values of f(x)when x=3 and x=6? explain in steps
a. f(3) = 10 and f(6)=4
b. f(3)=4 and f(6) =-10
c. f(3)=-4 and f(6)=10
d. f(3) =-10 and f(6)=-4