Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 10 - Review Exercises - Page 485: 7



Work Step by Step

given mid point(2,1) point A(8,10) To find point B(x2,y2) M(xm,ym) = ($\frac{x1+x2}{2}$, $\frac{y1+y2}{2}$) (2,1) = ($\frac{8+x2}{2}$ , $\frac{10 + y2}{2}$) 2 = $\frac{8+x2}{2}$ , 1= $\frac{10+y2}{2}$ x2=4-8 , y2 =2-10 x2=-4, y2=-8 B = (-4,-8)
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