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September 2, 2015

Homework Help: Geometry

Posted by Jim on Saturday, August 4, 2007 at 12:23pm.

If M is the midpoint of line AB.How do i Find the coordinates of B given A(4,-2) and M(1,3).

M = (A + B)/2 ---->

B = 2 M - A = 2(1,3) - (4,-2) =

(2-4,6+2) = (-2,8)

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