
Mike D. answered 01/21/22
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0 is in the range -1 <=x <=2 so f(0) = 2 x 0 - 4 = -4
1 is in the same range so f(1) = 2 x 1 - 4 = -2
2 is in the same range so f(2) = 2 x 2 - 4 = 0