Answer :
(7+x)/2= 3
7+x=6
x=(-1,0)
(-4+y)/2= 2
-4+y=4
y=(0,8)
Therefore, N has coordinates (-1,8)
7+x=6
x=(-1,0)
(-4+y)/2= 2
-4+y=4
y=(0,8)
Therefore, N has coordinates (-1,8)