Class 9 4. Linear Equation In Two Variables Exercise 4.2: NCERT Book Solutions
Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams.
NCERT Solutions
All chapters of ncert books Mathematics 4. Linear Equation In Two Variables Exercise 4.2 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 ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams. - 4. Linear Equation In Two Variables - Exercise 4.2: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.2 Mathematics class 9th:English Medium NCERT Book Solutions. Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams.
4. Linear Equation In Two Variables : Exercise 4.2 Mathematics class 9th:English Medium NCERT Book Solutions
Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams. - 4. Linear Equation In Two Variables - Exercise 4.2: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.2 Mathematics class 9th:English Medium NCERT Book Solutions.
Class 9 4. Linear Equation In Two Variables Exercise 4.2: 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 ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams.
Exercise 4.2
Chapter 4. Linear Equation In Two Variables
Exercise 4.2
1. Which one of the following options is true, and why?
y = 3x + 5 has
(i) a unique solution, (ii) only two solutions,
Solution
(iii) infinitely many solution, because we can put many value of x and can get many solution of y.
2. Write four solutions for each of the following equations:
(i) 2x + y = 7
(ii) πx + y = 9
(iii) x = 4y
Solution
3. Check which of the following are solutions of the equation x – 2y = 4 and which are not:
(i) (0, 2)
(ii) (2, 0)
(iii) (4, 0)
Solution :
x = 4 + 2y
(i) (0,2)
Putting value of x and y
= 0 = 4 + 2(2)
= 0 = 4 + 4 = 0 = 8, hence it is not a solution of eq
(ii) (2,0)
Putting value of x and y
= 2 = 4 + 2(0) = 2 = 4, hence it is also not a solution of eq
(iii) (4,0)
Putting value of x and y
= 4 = 4 + 2(0) = 4 = 4, hence it is a solution of eq
(v) (1,1)
Putting value of x and y
= 1 = 4 + 2(1) = 1= 6, hence, it is not a solution of eq
4. Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.
Solution :
2x + 3y = k
Putting the value of x and y
2(2) + 3(1) = k = 4+3 = k = k = 7
Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams.
See other sub-topics of this chapter:
Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams. - 4. Linear Equation In Two Variables - Exercise 4.2: NCERT Book Solutions for class 9th. All solutions and extra or additional solved questions for 4. Linear Equation In Two Variables : Exercise 4.2 Mathematics class 9th:English Medium NCERT Book Solutions. Class 9 chapter 4. Linear Equation In Two Variables ncert exercise questions and textual questions with solution for board exams and term 1 and term 2 exams.
Advertisement
NCERT Solutions
Select Class for NCERT Books Solutions
Notes And NCERT Solutions
Our NCERT Solution and CBSE Notes are prepared for Term 1 and Terms 2 exams also Board exam Preparation.
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
