Answer:
(4, 2) or (4, -6)
Step-by-step explanation:
Going 4 miles north would move the point (4, -2) 4 units up. When done so, the point (4, 2) is reached.
Going 4 miles south would move the point (4, -2) 4 units down. When done so, the point (4, -6) is reached.
A graph is shown below for further conformation.
hope this helps!