Homework Help: math

Posted by Sabra on Sunday, December 5, 2010 at 5:21am.

A,B are two points on a given line L.L is the midpoint of the section AB. find the coordinate of point B if the coordinate of A=7 and the coordinate of L=4

math - Marco, Sunday, December 5, 2010 at 5:41am
B--------L--------A
|---3----|----3----|

7-4= 3

4-3 = 1

so, B = 1

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