Answer:
12. Table #3
13. Table #4
14. Graph #4
15. Graph #1
Step-by-step explanation:
12. None of the tables can have repeating x-values
13. Only one with a repeating x-value
14. If you draw a line on any of the graphs you will go through one of the lines on the graph at least twice (Means it's not a function)
15. Only one where you draw a line and it'll go through twice
