Let A(x) =| f(t)dt, with f(x) as in Figure 13. Determine: (a) The intervals on which A is increasing and decreasing (b) The values x where A has a local min or max (c) The values of x where there are inflection points of A (d) The intervals where A is concave up or concave down y y = f(x) 2 4 6 8, 10 12 FIGURE 13

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