Question

The midpoint of AB is M(1,4). If the coordinates of A are (8,7), what are the coordinates of B?

Answer 1

Step-by-step explanation:

The value of midpoint AB is M(1,4)

and coordinates of A(8,7)

B(x,y)

midpoint =[x1+x2/2,y1+y2/2]

M(1,4) = (8+x/2,7+y/2)

1=8+x/2 ,4=7+y/2

2=8+x , 8=7+y

x=-6 , y=1

Therefore, B(x,y) = B(-6,1)

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