Class 9 4. Linear Equation In Two Variables Exercise 4.1: NCERT Book Solutions
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion.
NCERT Solutions
All chapters of ncert books Mathematics 4. Linear Equation In Two Variables Exercise 4.1 is solved by exercise and chapterwise for class 9 with questions answers also with chapter review sections which helps the students who preparing for UPSC and other competitive exams and entrance exams.
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 4. Linear Equation In Two Variables - Exercise 4.1: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.1 Mathematics class 9th:English Medium NCERT Book Solutions. Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion.
4. Linear Equation In Two Variables : Exercise 4.1 Mathematics class 9th:English Medium NCERT Book Solutions
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 4. Linear Equation In Two Variables - Exercise 4.1: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.1 Mathematics class 9th:English Medium NCERT Book Solutions.
Class 9 4. Linear Equation In Two Variables Exercise 4.1: NCERT Book Solutions
NCERT Books Subjects for class 9th Hindi Medium
4. Linear Equation In Two Variables
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion.
Exercise 4.1
Chapter 4. Linear Equation In Two Variables
Exercise 4.1
1. The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.
(Take the cost of a notebook to be 'x' and that of a pen to be 'y' )
Solution:
Let the cost of pen = y
Let the cost of notebook= x
Then, According To Question,
x = 2y
⇒ x - 2y = 0
2. Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:
(i) 2x + 3y = 9.35
Solution:
(i) 2x + 3y = 9.35
Expressing the equation in the form of ax + by + c = 0,
∴ 2x+3y-9.35= 0
On Comparing, We have
Then, a= 2, b= 3, c= -9.3
(ii) x – 5y – 10 = 0
Solution:
(ii) x – 5y – 10 = 0
Expressing the equation in the form of ax + by + c = 0,
∴ x- 5y - 10 = 0
On Comparing, We have
Then, a= 1, b= -5, c= -10
(iii) –2x + 3y = 6
Solution:
(iii) –2x + 3y = 6
Expressing the equation in the form of ax + by + c = 0,
∴ -2x + 3y - 6= 0
On Comparing, We have
Then, a= -2, b= 3, c= -6
(iv) x = 3y
Solution:
(iv) x = 3y
Expressing the equation in the form of ax + by + c = 0,
∴ x - 3y= 0
On Comparing, We have
Then, a= 1, b= -3, c= 0
(v) 2x = –5y
Solution:
(v) 2x = –5y
Expressing the equation in the form of ax + by + c = 0,
∴ 2x + 5y= 0
On Comparing, We have
Then, a= 2, b= 5, c= 0
(vi) 3x + 2 = 0
Solution:
(vi) 3x + 2 = 0
Expressing the equation in the form of ax + by + c = 0,
∴ 3x + 2= 0
On Comparing, We have
Then, a= 3, b= 0, c= 2
(vii) y – 2 = 0
Solution:
(vii) y – 2 = 0
Expressing the equation in the form of ax + by + c = 0,
∴ y-2= 0
On Comparing, We have
Then, a= 0, b= 1, c= -2
(viii) 5 = 2x
Solution:
(viii) 5 = 2x
Expressing the equation in the form of ax + by + c = 0,
∴ 2x - 5= 0
On Comparing, We have
Then, a= 2, b= 0, c= -5
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion.
See other sub-topics of this chapter:
Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 4. Linear Equation In Two Variables - Exercise 4.1: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.1 Mathematics class 9th:English Medium NCERT Book Solutions. Class 9 chapter 4. Linear Equation In Two Variables Important key points for quick revision for board exams, ssc and upsc exams preparaion.
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Notes And NCERT Solutions
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Mathematics Chapter List
1. Number Systems
2. Polynomials
3. Coordinate Geometry
4. Linear Equation In Two Variables
5. Introduction To Euclid’s Geometry
6. Lines and Angles
7. Triangles
8. Quadrilaterals
9. Area Parallelograms and Triangles
10. Circles
11. Constructions
12. Herons Formula
13. Surface Areas and Volumes
14. Statistics
15. Probability
