Answer:

NOW LET'S FIND THE VALUE OF AD

So what makes a function a function is that each input (x) only has one output (y).
Set A is not a function because when x = 2, y = -2 and 3.
Set B is not a function because when x = 9, y = 3 and -3.
In short, the correct option is "Neither A nor B".
They played 82 games.....they won 44.....so they lost (82 - 44) = 38
ratio of wins to loses...
they won 44
they lost 38
the ratio would be : 44/38 which reduces to 22/19 or 22:19 or 22 to 19