Let A(z) represent the area bounded by the graph, the horizontal axis, and the vertical lines at t = 0 and t = x for the graph below. Evaluate A(z) for x = 1, 2, 3, and 4. 5 4 3 2- 1 A(1) = 3 A(2) = 3 A(3) A(4) = 4.5 = 5 2 3 4 X X X 8

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