Question

Range of {(x,y)/x=3y x,y £N}​

Answer 1

SOLUTION :

$\sf \: x = 3y$

$\sf \implies \frac{x}{y} = 3$

$\sf \: y≠0$

Hance,

$\sf \: y < 0 \: \: \: \: \: or \: \: \: \: \: \: y > 0$

$\: \sf \: y \in( - \infty , \: 0) U \: (0 \:, \infty )$