Mathematics, 30.10.2019 22:31 NeonPlaySword

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

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Which function has an inverse that is also a function?
a. {(-4, 3), (-2, 7), (-1,0), (4,-3)(1...