Step-by-step explanation:
the vertical line test means if there are more than one point on a vertical line then it is not a fuction
i cant answer without seeing the graph but i hope this helps
Answer:
ummmm ok give a sec
not proportional
If it is proportional y/x = constant
y/x = 5/2 = 2.5
6/3 = 2
These are not the same so it is not proportional