Let be the midpoint of the segment
.
\
Let X and Y be the
.
The midpoint of the segment = 
Let X and Y be the
.
Substitute the coordinate values
in the midpoint
formula.
\
(Product of two different signs is negative) \ \
\
(Add:
)
(Subtract:
)
(Divide:
)
The midpoint point of X and Y is
.