Answer;
The coordiantes of the point Q is;
Explanation;
Here, we want to get the coordinates of the other endpoint
Mathematically, we can find the midpoint of two endpoints using the formula below;
The notation 1 and 2 represents the coordinates of the two end points
Now, by replacing the values given in the question, we have it that;
(x,y) is the coordinate of the point m which is (-2,1)
Now the first end point has the coordinates (-5,-1)
The second endpoint Q has the endpoint (x2,y2) which we want to calculate
We proceed to make the substitutions as follows;
We proceed to susbtitute the individual branches as follows;
Finally, we have;