Annalisa T. answered • 12d

High school teacher with 20 Years of Teaching Experience

The coordinates (x;y) of a Midpoint of a segment AB are given by x=(x_{1}+x_{2})/2 and y=(y_{1}+y_{2})/2 where A(x_{1};y_{1}) and B(x_{2};y_{2})

In this case you know M(1,2) and one endpoint R(-6,6)

So il will be:

1=(-6+x_{2})/2 that is -6+x_{2}=2 and x_{2}=8

and

2=(6+y_{2} )/2 that is 6+y_{2}=4 and y_{2}=-2

so the second endpoint will be (8,-2)

Annalisa T.

12d