Which statement describes how to determine if a relation given in a table is a function?

Question

If none of the output values are repeated, the relation is a function.
If none of the input values are repeated, the relation is a function.
If any of the input values are equal to the output values, the relation is a function.
If all the output values are paired with the same input value, the relation is a function.

Answer 1

think the vertical-line test.

Answer 2

thx i got a 80 yay

Answer 3

If none of the output values are repeated, the relation is a function.
If none of the input values are repeated, the relation is a function.

Answer 4

If none of the output values are repeated, the relation is a function.

Answer 5

B, if none of the input values are repeated the relation is a function