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{(-1, 1), (1, 1), (-2, 4), (2, 4)} Is the relation a function and why?
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{(-1, 1), (1, 1), (-2, 4), (2, 4)}
Is the relation a function and why?

User Sandesh Khutal
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5 votes

Step-by-step explanation:

User Gfy
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