If a point with coordinates (x, y) is translated up by "a" units, the new coordianates of the point becomes (x, y+a)
In this exercise, the coordinate of the marked point in the original figure is:
(1, -8)
When the original figure is translated up by 4 units, the coordinates of the marked point in the final figure becomes:
(1, -8+4) = (1, -4)
