Question

EXERCISE 1.1
1. Give the geometric representations of y = 3 as an equation
(i) in one variable
(ü) in two variables
2. Give the geometric representations of 2x + 9 = 0 as an equation
(i) in one variable
(ü) in two variables

it's from class 9 linear equations in two variables
can someone answer with an clear explanation​

Answer 1

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Asked on December 27, 2019 by

Anuj Raikwar

Give the geometric representation of y=3 as an equation

in two variable

MEDIUM

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ANSWER

In two variables, we have x and y axis.

Hence, writing equation y=3 in terms of x and y

y=3

0+y=3

or 0.x+y=3 .....(1)

Put x=0 in (1) we get

0(0)+y=3

0+y=3

y=3

So, point is (0,3)

Put x=1 in (1) we get

0(1)+y=3

0+y=3

y=3

So, point is (1,3)

Hence we can say that,in two variables,y=3 is line which is parallel to x−axis