SOLUTION: If there are two straight lines which are not parallel respectively {{{ax + by +c =0}}} and {{{px + qy + r =0}}}, Find the equation of straight line which goes through their in

Algebra ->  Coordinate-system -> SOLUTION: If there are two straight lines which are not parallel respectively {{{ax + by +c =0}}} and {{{px + qy + r =0}}}, Find the equation of straight line which goes through their in      Log On


   



Question 902653: If there are two straight lines which are not parallel respectively ax+%2B+by+%2Bc+=0 and px+%2B+qy+%2B+r+=0,
Find the equation of straight line which goes through their interception point and (0,0) point.
Me and other students use this formula and make x and y 0 because the line which we want to find goes through the point (0,0). And then we get a value for lambda .
We put that value to equation and take the equation of the straight line.
My teacher never taught us how this relationship come. She just told us to use it. Here's the formula.
%28ax+%2B+by+%2Bc%29+%2B+lambda%28px+%2B+qy+%2B+r%29 =0
I want you to show me how this relationship come and a definition for lambda..
Thank you.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
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Submit once in 24 hours not every hour!