The slope of the of f(x) is the instantaneous rate of change of f at a point. Calculate the difference quotient for f(x) = 3x - 4 on the interval [a, a + h]. Simplify your answer. Answer: flat h) - J(@) = h - 1, find f'(a). Simplify your answer. h Answer: The slope of the of f(x) is the average rate of change of f over the given interval