Question

Decide whether the relation defines a function.

Answer 1

B. Not a function because both (3,6) (4,6) have the same y making them not a function

Answer 2

This is a function because each input (x-value) has only one output (y-value). If an input (x-value) has more than one output (y-value) it is not a function. It is still a function if an output has more than one input.

Your answer is A