Question

Write an equation in point slope form for the perpendicular bisector of the segment with endpoints M(-1,-3)and N (7,1)

Answer 1

Slope of segment here = 4/8 = 1/2
slope of perp needs to equal -2
midpoint of segment = (3,-1) so include that as a point:
y = -2(x-3)+1
(y- (-1)) = -2(x-3)