NCERT Solutions Class 9 Maths
Chapter – 4 (Linear Equations in Two Variables)
The NCERT Solutions in English Language for Class 9 Mathematics Chapter – 4 Linear Equations in Two Variables Exercise 4.4 has been provided here to help the students in solving the questions from this exercise.
Chapter 4: Linear Equations in Two Variables
- NCERT Solution Class 9 Maths Ex – 4.1
- NCERT Solution Class 9 Maths Ex – 4.2
- NCERT Solution Class 9 Maths Ex – 4.3
Exercise – 4.4
1. Give the geometric representations of y = 3 as an equation
(i) in one variable
(ii) in two variables
Answer –
(i) in one variable
(ii) In two variables, 0x + y = 3
When x = 0, y = 3
When x = 1, y = 3
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,
2x + 9 = 0
2x = -9
x = -9/2
x = -4.5
(ii) In two variables,
2x + 9 = 0
2x + 0y + 9 = 0
When y = 0, x = -4.5
When y = 1, x = -4.5