Find an equation for the perpendicular bisector of the line segment whose endpoints are ( − 7 , − 4 ) (−7,−4) and ( − 1 , 8 ) (−1,8).

Answer 1

Determine the slope, m, between the two points

Determine the point, M, that is the mid-point.

Use M and the slope -1 / m in the point-slope form from Algebra 1.