Coincident lines have infinite solutions.
We know that coincident lines have infinite solutions so find out which among the following pairs of lines are coincident.
IfIf a1a2=b1b2=c1c2, the system of equations are consistent , coincident lines and have infinite solutions. for the system of equations a1x+b1y+c1=0 and a2x+b2y+c2=0 ,then :