1.

Write the condition when the line are parallel

Answer»

I ) If the slopes of TWO lines

are equal then the lines

are parallel .

ii ) If a1x + b1y + C1 = 0,

and a2x + B2Y + C2 = 0

are two system of

linear equations ,

( A1 ≠ 0 , a2 ≠ 0 )

if a1/a2 = b1/b2 then

these lines are parallel .

•••••


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