It is in form (x,y) (ususally) 7.5 and 12 there is something called a coordinate system where a line called the y axis runs vertically for infinity and a line perpendicular to it, crosses it. the other line is called the x axis which also extends for infinity the point where they cross is point (0,0) or the origin basically the numbers tell you how far you are from the axises on the y axis, + numbers are up and - numbers are down on the x axis, + numbers are to the right and - numbers are to the left
7.5=x and 12=y +7.5 is positive 7.5 means that the point is 7.5 units to the right of the origin in relation to the x axis
12 is positive 12 means that the point is 12 units up from the origin in relation to the y axis
hope this helped. feel free to ask if its too confusing
