Since, the coordinates of the midpoint of line GH are M.
The coordinates of endpoint G are (-4,1)
We have to determine the coordinates of endpoint H.
The midpoint of the line segment joining the points and is given by the formula .
Here, The endpoint G is (-4,1) So,
Let the endpoint H be
The midpoint coordinate M is .
So,
Now,
So, the other endpoint H is (-9,-13).