Question

The midpoint of AB is at (1,-3).if A=(-4,7),find B.

Answer 1

B(6,-1)

Explanation:

mid point of AB = (1,3)

MID POINT FORMULA=(x1+x2/2 , y1+y2/2)

1=x1+x2/2 , 3=y1+y2/2

2= -4 + x2 , 6 = 7 +y2

x2=6, y2=-1