Question

M (0,8) is the midpoint of segment RS. The coordinatws of S are (10,10). What are the coordinates of R?

Answer 1

The coordinates of R x= -10 , y=6

Explanation:

The midpoint between two points (x1 , y1) and (x2 , y2) is

`((x1+x2)/(2) ,(y1+y2)/(2) )`

`0=(10+x2)/(2)`

10 +x2 = 0

x2 = -10

`8=(10+y2)/(2)`

10 + y2 =16

y2 = 16 -10 = 6

Point R is (-10 , 6)