Question

1) Which one of the following pair of equations represents coincident
lines?
1
(i) 2x - 3y + 7= 0; 3x + 7y – 2 = 0
(ii) 5x + 3y + 7 =0; 10x - 6y + 3 = 0
(iii) 3x + 4y + 7 = 0; 9x + 12y + 21 = 0
(iv) X + 2y = 3; 2x - 5y = 1​

Answer 1

Step-by-step explanation:

3rd is the coincident lines

because a1/a2 =b1/b2=c1/c2