Question

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

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

B

Explanation:

Answer 2

I believe the answer is “If none of the input values are repeated, the relation is a function” because one input must have one output.