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49. The graph of a function y = f (x) consists of 3 line segments. The graph and the coordinates of the endpoints of the 3 line segments are shown in the standard (x,y) coordinate plane below. What is the area, in square coordinate units, of the region bounded by the graph of y = f (x), the positive y-axis, and the positive x-axis ?
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A. 10
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B. 13
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C. 14
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D. 15
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E. 20