fin the endpoint the endpoint of the line segment with the endpoint (9,-10) and midpoint (4,8)

Answer 1

Let (x,y) be the other endpoint of the line segment.

Then, since the midpoint is halfway between the endpoints, (x+9)/2 = 4 and (y-10)/2 = 8.

So, x = -1 and y = 26.

(x,y) = (-1,26)