I think it would be the same you would just be plotting it backwards.<span />
since you did not upload the picture, I drew one myself.
Answer:Y=3/1 X -1
Step-by-step explanation:rise over run 3/1 and then y intercept is -1
The midpoint of BC = D
x(mid) = (x(B) + x(C)) / 2 = (-2 + 4) / 2 = 1
y(mid) = (y(B) + y(C)) / 2 = ( 3 + 1) / 2 = 2
=> D(1,2)