Which function has an inverse that is also a function? { (-4, 3), (-2, 7), (-1, 0), (4, - 3), (11, - 7) } { (-4, 6), (-2, 2), (-1, 6), (4, 2), (11, 2) } { (-4, 5), (-2, 9), (-1, 8), (4, 8), (11, 4) } { (-4, 4), (-2, - 1), (-1, 0), (4, 1), (11, 1) }
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