Approximate the area under the graph of f(x) = 0.02x* - 1.69x + 79 over the interval [5,9] by dividing the interval into 4 subintervals. Use the left endpoint of each subinterval. . . . ook The area under the graph of f(x) = 0.02x* - 1.69x + 79 over the interval [5,9] is approximately (Simplify your answer. Type an integer or a decimal.) ce Lit ources ons on Tool