Answer:
I think that is , the point where the line crosses the vertical y-axis. So on you grid you would have 2 separate groups like lets say one is (3,6) and another is (2,5) then you would put your second Y first as it says so it should look like this. 5-6 because these are both your Ys because as we know (X,Y) so then you Xs would look like this 2-3. I hope this made sense :)
Step-by-step explanation:
