Question

Determine which relation is a function.

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

Answer 1

D

Explanation:

D is the only option that does not have repeated x-values.

Answer 2

The fourth line is a function.

Explanation: