NCERT Solution for Linear equation Chapter 4 Exercise 4.4

Question 1
Give the geometric representations of y = 3 as an equation
(i) in one variable
(ii) in two variables
Solution
(i) The representation of the y=3 on the number line is shown in below figure where y=3 is treated as an equation in one variable


(ii) This can be treated as equation in two variable as
$ 0 \times x + y =3$
Drawing the graph by putting x=0 and x=1




So ,it is a line parallel to X-axis



Question 2
Give the geometric representations of 2x + 9 = 0 as an equation
(i) in one variable
(ii) in two variables
Solution
(i) The representation of the $2x+9=0$ on the number line is shown in below figure where x=-9/2 =4.5 is treated as an equation in one variable


(ii) This can be treated as equation in two variable as
$ 2x + 0 \times y +9=0$
Drawing the graph by putting y=0 and y=2




So ,it is a line parallel to Y-axis

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<a href="https://physicscatalyst.com/Class9/ncert-solutions-linear-equations-ex-4-4.php">Class 9 Maths NCERT Solution for Linear equations in Two variables Chapter 4 Ex 4.4</a> Also Read

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• Notes
  • Linear equations in two variable Class 9 Notes
• Ncert Solutions
  • NCERT Solution Class 9 Linear equation Ex 4.1
  • NCERT Solution Class 9 Linear equation Ex 4.2
  • NCERT Solution Class 9 Linear equation Ex 4.3
  • NCERT Solution Class 9 Linear equation Ex 4.4
• Assignments
  • Linear equation in two variable Class 9 Assignments
  • Linear equation in two variable Class 9 Important questions

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Class 9 Maths Class 9 Science