Question

Give the geometric representations of $y=3$ as an equation
(i) in one variable
(ii) in two variable

Answer 1

(i) $y=3$

(ii) $y=3$

$\Rightarrow 0x+y=3$

$\Rightarrow 0x+y–3=0$

which is in fact $y=3$

It is a line parallel to $x$-axis at a positive distance of $3$ from it. We have two of its solution as $(0,3),(1,3).$