I’m so confused. Someone please help and if you can explain how to do it. WILL MARK BRAINLIEST

Answer:
Function
Step-by-step explanation:
A function is a relation where each x-value has only one y-value. In this problem, all the x-values have a y-value of 3. It is a function because even though they all share the same y-value, they don't have more than one y-value. It would be a relation but not a function if one x-value had two y-values.
Hope this helps. :)