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(i) 5x − 4y + 8 = 0
(ii)9x + 3y + 12 = 0
7x + 6y – 9 = 0
18x + 6y + 24 = 0
(iii) 6x − 3y + 10 = 0
2x – y + 9 = 0
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(i) 5x − 4y + 8 = 0, 7x + 6y – 9 = 0
Comparing equation 5x − 4y + 8 = 0 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
(ii) 9x + 3y + 12 = 0, 18x + 6y + 24 = 0
Comparing equation 9x + 3y + 12 = 0 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
We get,
Hence, lines are coincident.
(iii) 6x − 3y + 10 = 0, 2x – y + 9 = 0
Comparing equation 6x − 3y + 10 = 0 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
Hence,
lines are parallel to each other.
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