Give the geometric representations of y = 3 as an equation.

(i) Equation y = 3 can be represented in one variable on number line.
(ii) For two variables representation of y = 3, we will use Cartesian plane. Now the equation:
0.x + y = 3
⇒ y = 3 – 0.x
Putting x = 1, we have, y = 3 – 0.1 = 3
Putting x = 2, we have, y = 3 – 0.2 = 3
Hence, A(1, 3) and B(2, 3) are the two solutions of the given equation.