Question

Write the nature of the following linear pair of equations.(Intersecting, parallel I) 2x + 3y-9 = 0 ; 4x + 6y -18 =0 II) x-2y = 0 ; 3x + 4y – 20 = 0​

Answer 1

Answer:

The given pair of linear equation can be written as

2ax+by−a=0 and 4ax+2by−2a

Here, a1=2a,b1=b,c1=−a 

And a2=4a,b2=2b,c2=−2a

∴a2a1=4a2a=21 and b2b1=2bb=21 and c2c1=−2a−a=21

Here, a2a1=b