It is the x coordinates followed by the y coordinates i.e (x, y)
It is where the x and y coordinates intersect.
The coordinates of the x intercept for the equation y equals x plus 1 is (x=-1, y=0).
The horizontal coordinates are plotted on the x axis whereas the vertical coordinates are plotted on the y axis in the form of (x, y)
Example: draw the graph where y = 10 - x , from x = 0 to 5 step 1