Question

Which relation is NOT a function?

O {(1,-5), (3,1), (-5,4), (4,-2)}
O {(1,-5),(-1,6), (1,5), (6,-3)}
O {(2,7), (3,7), (4,7), (5,8)}
O {(3,-2), (5,-6), (7,7), (8,8)

Answer 1

{(1,-5), (3,1), (-5,4), (4,-2)}

O {(1,-5),(-1,6), (1,5), (6,-3)}

O {(2,7), (3,7), (4,7), (5,8)}

O {(3,-2), (5,-6), (7,7), (8,8)

Explanation: