Answer:
The answer is
( 2 , - 2)
Explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula

where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
( -1, 1 ) and ( 5, -5 )
The midpoint is

We have the final answer as
( 2 , - 2)
Hope this helps you