Answer:
(-4,-9)
Step-by-step explanation:
Given a segment AB with endpoints with coordinates
A:
B:
The coordinates of the midpoint M of the segment AB are given by:
(1)
In this problem, we know that:
- The midpoint of the segment AB has coordinates
- One of the endpoint of the segment has coordinates
So we can find the coordinates of the other endpoint A by re-arranging eq.(1) above:
And substituting, we find:
So, the coordinates of the other endpoint are (-4,-9).