,

Use the midpoint formula to find the midpoint of the line segment.

Substitute in the values for and .

Factor out of .

Factor out of .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Divide by .

Subtract from .

Subtract from .

Move the negative in front of the fraction.

Find the Midpoint (10,-7) , (-8,-10)