The first quadrant starts on (12,11)
If the quadrant moves 8 units left it will be located at (12-8, 11) = (4,11)
and if it moves 7 units down it will be located at (4,11-7) = (4,4)
So the new location of the quadrant is (4,4)
It's important to notice that the first quadrant starts on (12,11) and the coordinates are (x,y) where x is on the horizontal axis and y is on the vertical axis. So when it moves left it's decreasing the x value and when it moves down it's decreasing the y value