Question

Give geometric representation of $2y+7=0$ as an equation:
(a) In one variable
(b) In two variable

Answer 1

(a) In one variable,

$2y+7=0$

$\Rightarrow 2y=-7$ ………….(i)

Equation (i) is an equation of one variable i.e., 'y'.

(b) In two variables,

$2y+7=0$

$\Rightarrow 2y=-7$

$\Rightarrow 0x+2y=-7$ ……….(ii)

Equation (ii) is represented as an equation of two variables i.e., 'x' and 'y'.