What can you say about the ratio of the coefficients for the lines $a_{1}x+b_{1}y+c_1=0$ and $a_{2}x+b_{2}y+c_2=0$ from the graph ?

What can you say about the ratio of the coefficients for the lines $a_{1}x+b_{1}y+c_1=0$ and $a_{2}x+b_{2}y+c_2=0$ from the graph ?

Parallel lines are obtained for the pair of equations $a_{1}x+b_{1}y+c_1=0$ and $a_{2}x+b_{2}y+c_2=0$ if

What can you tell about the ratio of coefficients of the lines $a_1$x + $b_1$y + $c_1$ = 0 and $a_2$x + $b_2$y + $c_2$ = 0 from the graph ?

What can you tell about the ratio of coefficients for the llines $a_{1}x+b_{1}y+c_1=0$ and $a_{2}x+b_{2}y+c_2=0$ from the graph?

Unique point is obtained for the pair of equations $a_1$x + $b_1$y + $c_1$ = 0 and $a_2$x +$b_2$y + $c_2$ = 0 if __________ .