Find the average rate of change of the function r(x)=x^3−2x^2−15x+3 from x^1=−2 to x^2=1.

Question

Answer: The average rate of change is 

Answer 1

The average rate of change is change in y /change in x or r(1)-r(-2)/3

(1^3) -2(1^2)-15(1)+3 -[ (-2^3) -2(-2^2)-15(-2)+3 all divided by w

(1-2-15+3 )-( -8-8+30+3). / 3

(-13) - (17). / 3

-30/3 =-10