Question

Is the relation a function?

{( 1, 12), (3, 14), (14, 3), (5, 12)}

yes or no

Answer 1

The relation is a function

Answer 2

Yes.

Explanation:

Yes because each value of x maps to a single value of y.

THere is a many-to-one relation with (1, 12) and (5, 12) but that is OK for a function. What would not be OK is if we had a one-to-many relation like (1, 12) and (1, 14) included in the ordered pairs - that is not a function.