Find two solutions for each of the following equations:
(i) 2x – 3y = 12 (ii) 2x – 5y = 0
(iii) 3y – 4 = 0.
Solution not provided.
Ans. Â (i) Â (0, - 4) Â and (6, 0)
    (ii)  (0, 0) andÂ
    (iii)  Â
Find the value of a so that the following equation may have x = 1, y = 1 as a solution:
3x + ay = 6
Write the equation  in the form of ax + by + c =0. Check whether (0, 1) and
 are the solutions of the equation.