1. Consider again the functional mapping where N is the set of Nobel Prize winners and T is the set of years in which the prizes were won. If an economist wins the prize for a second time, would this still be a valid function? Explain. 2. Identify and graph four ordered pairs for each of the following functions. Sketch a graph of each of the functions. (a) y 100 20x over the interval [2, 6] (b) y x x3 over the interval (5, 5) (c) y x2 1 over the interval [100, 100]
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