Let us assume that 1 square on the graph represents 1 unit.
The first step is to find the coordinates of N in the preimage. It is
x = 1
y = 3
Coordinate = (1, 3)
Recall, if we translate a figure with coordinates (x, y) c units left and d units down, the new coordinates would be
(x - c, y - d)
Thus, if we translate the given figure 4 units left and 3 units down, the new coordinates of N would be
N'(1 - 4, 3 - 3)
N'(- 3, 0)
The location of N' is (- 3, 0)