The left, right, Trapezoidal, and Midpoint Rule approximations were used to estimate f(x) dx, where f is the function whose graph is shown. The estimates were 0.7818, 0.8679, 0.8631, and 0.9540, and the same number of subintervals were used in each case. y = f(x) (a) Which rule produced which estimate? Ln = 0.7813 Rn = Tn = Mn = (b) Between which two approximations does the true value of f(x) dx lie? (smaller value) | (larger value)

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