Question

If a1x+b1y+c=0 and a2x+b2y+c=0 are representig parallel then write their relationship between their correspondig coefficients​

Answer 1

Answer:

For co-incident lines

a1/a2 =b1/b2= c1/c2

Answer 2

Answer:

If the equations a

1

x+b

1

y+c

1

=0 and a

2

x+b

2

y+c

2

=0 represent two perpendicular lines then prove that a

1

a

2

+b

1

b

2

=0