Let f(x)_ x-3 2x+1 . For this problem, use the following definition of the derivative, f(a)= lim f(x)-f(a) x- a x-a a. Set up the difference quotient (do not simplify), lim x - a b. The numerator of the difference quotient when simplified into a single fraction becomes c. Before taking the limit, and after simplifying, the difference quotient expression becomes lim x - a d. Taking the limit, we have that f'(a) = Viewing Saved Work Revert to Last Response