4 7 11 f(x) 0.7 1.1 1.9 2.5 5.3 11 The continuous function f is known to be increasing for all x. Selected values of f are given in the table above. Let L be the left Riemann sum approximation for f (x) dx using the four 2 subintervals indicated by the table. Which of the following statements is true? 11 A L = 13.95 and is an underestimate for f(x) dx. 2 11 B L = 13.95 and is an overestimate for f (x) dx. 11 (Cc L = 15.5 and is an underestimate for f (x) dx. 11 D L = 15.5 and is an overestimate for! f (x) dx.

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