Answer:
D
Step-by-step explanation:
It's D bc you can have two of the same inputs equaling differnt outputs. You could of it as 4+3 = 7, 9, 2, and 1 or whatever numbers, its not true it only equals 7. Hope that helps
the answer is d
the x values don't repeat so therefore It is a function.
I hope that is useful for you :)
60% Hope this helped! :)
