If the lines representing the pair of linear equations a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 are coincident, then
A. a1/a2 = b1/b2
B. a1/a2 = b1/b2 = c1/c2
C. a1/a2 ≠ b1/b2
D. a1/a2 = b1/b2 ≠ c1/c2
Answer:B
If the lines representing the pair of linear equations a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 are coincident, then
A. a1/a2 = b1/b2 B. a1/a2 = b1/b2 = c1/c2 C. a1/a2 ≠ b1/b2 D. a1/a2 = b1/b2 ≠ c1/c2