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3 Find the area of the region under the curve f(x) = 4x over the interval [0,2]. To do this, divide the interval [0,2] into n equal subintervals, calculate the area of the corresponding circumscribed polygon, and then let n→∞. A = (Simplify your answer.)

•ff(x)dx. where a and b are the left and right endpoints for which f is defined, by using the interval additive property and the appropriate area formulas from a plane geometry. Begin by graphing the given function. Calculate 9x if 0sxs1 if 1<x≤9 if 9<xs14 f(x)= 9 X 14 S₁ f(x)dx= (Simplify your answer.) 0 CI