Write each of the following as an equation in two variables:
(i) x = – 5 (ii) y = 2
(iii) 2x = 3 (iv) 5y = 2.
Solution not provided.
Ans. (i) 1 x + 0y + 5 = 0
(ii) 0x + 1y - 2 = 0
(iii) 2x + 0y - 3 = 0
(iv) 0x + 5y - 2 = 0
Which one of the following options is true, and why?
y = 3x + 5 has
(i) a unique solution,
(ii) only two solutions,
(iii) infinitely many solutions.