RD Sharma Solutions for Class 9 Maths Chapter 13 Linear Equations in Two Variables Exercise 13.4

RD Sharma Class 9 Solutions Chapter 13 Ex 13.4 Free Download

RD Sharma Solutions for Class 9 Maths are given here for Chapter 13 exercise 13.4. This exercise deals with the equations of lines parallel to the x-axis and y-axis. Any point in the form (x, 0), where x is any real number, lies on x-axis. Because y-coordinate of every point on the x-axis is zero. The equation of x-axis is y=0. Similarly the equation of y-axis is x=0 as x-co-ordinate of every point on the y-axis is zero. Students can download RD Sharma chapter 13 exercise 13.3 solutions and practice to score good marks in the examinations.

Download PDF of RD Sharma Solutions for Class 9 Maths Chapter 13 Linear Equations in Two Variables Exercise 13.4

 

rd sharma class 9 maths chapter 13D
rd sharma class 9 maths chapter 13D
rd sharma class 9 maths chapter 13D
rd sharma class 9 maths chapter 13D
rd sharma class 9 maths chapter 13D
rd sharma class 9 maths chapter 13D

 

Access Answers to Maths RD Sharma Class 9 Chapter 13 Linear Equations in Two Variables Exercise 13.4 Page number 13.32

Question 1: Give the geometric representations of the following equations

(a) on the number line (b) on the Cartesian plane:

(i) x = 2 (ii) y + 3 = 0 (iii) y = 3 (iv) 2x + 9 = 0 (v) 3x – 5 = 0

Solution:

(i) x = 2

The representation of equation on the number line:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 1

The representation of equation on the Cartesian plane:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 soln

(ii) y + 3 = 0

or y = -3

The representation of equation on the number line:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 2

The representation of equation on the Cartesian plane:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 2 soln

(iii) y = 3

The representation of equation on the number line:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 3

The representation of equation on the Cartesian plane:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part  3 soln

(iv) 2x + 9 = 0

or x = -9/2

The representation of equation on the number line:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 4

The representation of equation on the Cartesian plane:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 4 soln

(v) 3x – 5 = 0

or x = 5/3

The representation of equation on the number line:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 5

The representation of equation on the Cartesian plane:

RD sharma class 9 maths chapter 13 ex 13.4 question 1 part 5 soln

Question 2 : Give the geometrical representation of 2x + 13 = 0 as an equation in

(i) one variable (ii) two variables

Solution:

2x + 13 = 0

(i) Isolate given equation in x

Subtract 13 from both the sides

2x + 13 – 13 = 0 – 13

2x = -13

Divide each side by 2

x = -13/2 = -6.5

Which is an equation in one variable.

RD sharma class 9 maths chapter 13 ex 13.4 question 2 part 1

(ii) 2x + 13 = 0 can be written as 2x + 0y + 13 = 0

The representation of the solution on the Cartesian plane: A line parallel to y axis passing through the point (-13/2 , 0):

RD sharma class 9 maths chapter 13 ex 13.4 question 2 part 2


Access other exercise solutions of Class 9 Maths Chapter 13 Linear Equations in Two Variables

Exercise 13.1 Solutions

Exercise 13.2 Solutions

Exercise 13.3 Solutions

Exercise VSAQs Solutions

RD Sharma Solutions for Class 9 Maths Chapter 13 Exercise 13.4

Class 9 Maths Chapter 13 Linear Equations in Two Variables Exercise 13.4 is based on topic – Equations of lines parallel to the x-axis and y-axis. Students can download RD Sharma chapter 13 exercise 13.4 solutions and practice to score good marks in the examinations.

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