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Mathematics, 12.12.2020 16:20 ryleerod07

Which relation is a function? {(1, βˆ’1), (βˆ’2, 2), (βˆ’1, 2), (1, βˆ’2)}

{(1, 2), (2, 3), (3, 2), (2, 1)}

{(1, 4), (2, 3), (3, 2), (4, 1)}

{(4, 2), (3, 3), (2, 4), (3, 2)}

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Which relation is a function? {(1, βˆ’1), (βˆ’2, 2), (βˆ’1, 2), (1, βˆ’2)}

{(1, 2), (2, 3), (3,...
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