
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 30th, 2012, 08:56 AM  #1 
Newbie Joined: Oct 2012 Posts: 20 Thanks: 0  Please for Straight lines
If a,b,c are the first, third and fifth terms of an A.P., then the line ax + by + c =0 represents a family of lines passing through the point _____________; ( a <>0 , b<>0 and c<>0). Please explain method too. Thanks in advance.

November 3rd, 2012, 02:27 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 18,845 Thanks: 1567 
The line has equation ax + (a + d)y + a + 2d = 0, which is satisfied by (x, y) = (1, 2).


Tags 
lines, straight 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
straight lines  yash0270  Algebra  5  September 4th, 2015 06:35 AM 
Straight Lines Questions.........  devvaibhav  Algebra  11  June 2nd, 2013 12:47 PM 
About Straight Lines Plz  alloy  Algebra  1  October 30th, 2012 08:56 AM 
Two straight lines  mikeportnoy  Algebra  13  December 22nd, 2009 12:45 PM 
Straight  Apprentice123  Algebra  0  June 20th, 2008 05:08 AM 