Question

Which relation is a function? Select all that apply. {(3,1), (-3,1), (4, 3), (-4,3)} {(3,3), (-2,-2), (0, 0), (-4,4)} {(1,4), (2,4), (3, 4), (4,4)} {(3,1), (3,2), (3, 3), (3,4)} {(3,1), (3,3), (3, 2), (2,3)}​

Answer 1

{(3,1), (-3,1), (4, 3), (-4,3)}this one is function

{(3,3), (-2,-2), (0, 0), (-4,4)}this one is function

{(1,4), (2,4), (3, 4), (4,4)this ones a function}

{(3,1), (3,2), (3, 3), (3,4)} not a function

{(3,1), (3,3), (3, 2), (2,3)}​not a function

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