CLASS 9 MATH NCERT SOLUTION FOR CHAPTER – 4 LINEAR EQUATIONS IN TWO VARIABLES EX – 4.4

Linear Equations in Two Variables

Page No: 77

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

Answer

(i) in one variable, it is represented as
y = 3

class 9 maths coordinate geometry chapter 4 11

(ii) in two variables, it is represented as a line parallel to X-axis.0x + y = 3

class 9 maths chapter 4 ncert 10

2. Give the geometric representations of 2x + 9 = 0 as an equation
(i) in one variable
(ii) in two variables

Answer

(i) in one variable, it is represented as
x = -9/2

class 9 maths coordinate geometry ncert 12

(ii) in two variables, it is represented as a line parallel to Y-axis.2x + 0y + 9 = 0

class 9 maths chapter 4 ncert 13

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