# NCERT Class 9 Solutions: Linear Equation in Two Variables (Chapter 4) Exercise 4.4 – Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Q-2 Give the geometric representation of as and equation,

1. in one variable
2. in two variables.

Solution:

• Equation of in one variable

The representation of on the number line is as show below:

• In two variable can be written as

It is a linear equation in two variable and . It is best to represent this line on a plane- the coordinate plane. Note that all the values of are permissible because is always . However, must satisfy the relation . That is, y- coordinates of the points on this line don՚t matter as long as their x-coordinate . Understood this way, it is a line parallel to y axis passing through x =

• Two possible points on this line can be
• So plotting point and joining them we get the graph AB as a line papallel to at a distance of on the left .

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