Question

Is the following relation a function?

Answer 1

Answer: No

Explanation: The relation is not a function because there is more than one output (y) for a single input (x).

Answer 2

Answer:

No this is not a function since 2 of the domain values have the same range.

Step-by-step explanation:

Well in simpler terms, if one or more range values (right side) have more then 1 arrow pointing to them, its automatically not a function. If each one has one arrow pointing towards them, its a function.