Question

Evaluate the following relation. {(14, 12), (15, −2), (12, −5), (−2, 15)} The relation is a function

Answer 1

I think the answer is A. True

Answer 2

It is true because each input has only 1 output.
in other words, each x value has a separate y value. An x value doesn't come twice and have a different y value each time. If it did, it wouldn't be a function.