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October 30th, 2011, 01:17 PM  #1 
Newbie Joined: Sep 2011 Posts: 16 Thanks: 0  Straight line graphs
Hi, was wondering if anyone can help please? The point A(6,4) and the point B lie on line L. Find an equation for L in the form ax+by+c=0 where a, b and c are integers? Thanks 
October 30th, 2011, 01:34 PM  #2 
Newbie Joined: Sep 2011 Posts: 16 Thanks: 0  Re: Straight line graphs
Sorry supposed to be point B is (8,3) Thanks 
October 30th, 2011, 02:47 PM  #3 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,209 Thanks: 517 Math Focus: Calculus/ODEs  Re: Straight line graphs
First, we may compute the slope m of the line: Next, using the pointslope form for a line, we find: 
November 5th, 2011, 01:00 PM  #4 
Newbie Joined: Sep 2011 Posts: 16 Thanks: 0  Re: Straight line graphs
Thank you 

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