1. Mar 21, 2007 #1

   ArL

   

   sry I wrote two threads. (Same thing inside) so delect this please.

    

   Last edited: Mar 21, 2007

   ArL, Mar 21, 2007
2. 
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3. Mar 21, 2007 #2

   Integral

   

   Staff Emeritus

   Science Advisor

   Gold Member

   Start with the 2 point formula to express the line between your 2 points. Now find the mid point, and use the point slope formula to express the line you need.

    

   Integral, Mar 21, 2007

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