Question

If segment RS has M(8,-2) and coordinates R(10,5) then what are the coordinates of point S?

Answer 1

If M is the midpoint of segment RS, then

M = (R + S)/2

2M = R + S . . . . . multiply by 2

S = 2M - R = 2(8, -2) -(10, 5) = (6, -9) . . . . put in the given values