Suppose that f is a function given as f(x) f(a+h)-f(a) h Step 1: What is f(a+h)-f(a) h Step 2: What is f(a+h)-f(a) h = f(a+h)-f(a) h f'(4) = lim h0 = 9 I f(4+h)-f(4) h unsimplifed? Simplifed? Step 3: The derivative of the function at a = 4 is the limit of the difference quotient as h approac zero. Find f'(4)