for functions to work, there can only be one y value per x value aka if you see a set like this:
{(4,2), (6,5), (10,1), (3,6), (6,7)}
It is not a function because there are two y values (5 and 7) for one x value (6).
it is not a function
Answer:
1/8 for each friend.
Step-by-step explanation:
1/8 + 1/8 + 1/8 + 1/8 = 1/2