Question

Midpoint of ST is (5,-8). T is (4.5,-2.5) Find S.

Answer 1

(5.5, -13.5)

Explanation:

Midpoint M satisfies ...

M = (S +T)/2

So ...

2M = S + T

2M -T = S

2(5, -8) -(4.5, -2.5) = S = (10 -4.5, -16 +2.5)

S = (5.5, -13.5)