Answer: R = (-8, 20)
Step-by-step explanation:
Given that :
M is the midpoint of RS
M = (-4, 5)
S = (0, - 10)
NOTE :
midpoint, M equals
Mx = (Rx + Sx) / 2
My = (Ry + Sy) / 2
Mx = - 4, Sx = 0, My = 5, Sy = - 10
Mx = (Rx + Sx) / 2
-4 = (Rx + 0) / 2
-8 = Rx + 0
Rx = - 8
My = (Ry + Sy) / 2
5 = (Ry + (-10)) / 2
10 = Ry - 10
10 + 10 = Ry
Ry = 20
Hence, coordinates of R = - 8 and 20
R = (-8, 20)
