Answer:
Since the slope of the line is (31/4 - 25/4) / (5/4 - 3/4) = 3 that means that for every 1 that x increases, y increases by 3 so an example could be 1 3/4 for x and 9 1/4 for y.
Assuming it's a linear equation, y= -1/2x
3.5 each of them will get 3 cookies and will split the last on in half
It may be a negative or a fracton of a number.