Question

M is the midpoint of ST. S(-8, 9) and M(-10, 14). Find the coordinates of the other endpoint, T.​

Answer 1

T = (-12, 19)

Explanation:

We know that the definition of the midpoint is ...

M = (S + T)/2

Solving for T gives ...

T = 2M -S

T = 2(-10, 14) -(-8, 9) = (-20+8, 28-9)

T = (-12, 19)