Chapter 3 Class 10 Pair of Linear Equations in Two Variables
Example 7 Important
Example 8 Important
Example 10 Important
Question 4 Important Deleted for CBSE Board 2025 Exams
Question 9 Important Deleted for CBSE Board 2025 Exams
Ex 3.1, 1 (i) Important
Ex 3.1, 3 (i) Important
Ex 3.1, 6 Important
Question 2 (i) Important Deleted for CBSE Board 2025 Exams
Ex 3.1, 7 Important You are here
Question 1 (i) and (ii) Important Deleted for CBSE Board 2025 Exams
Question 1 (iii) and (iv) Deleted for CBSE Board 2025 Exams
Question 1 (v) and (vi) Important Deleted for CBSE Board 2025 Exams
Question 1 (vii) and (viii) Important Deleted for CBSE Board 2025 Exams
Question 2 (i) Important Deleted for CBSE Board 2025 Exams
Chapter 3 Class 10 Pair of Linear Equations in Two Variables
Last updated at April 16, 2024 by Teachoo
Ex 3.1, 7 Draw the graphs of the equations x – y + 1 = 0 and 3x+ 2y – 12 = 0. Determine the coordinates of the vertices of the triangle formed by these lines and the x-axis, and shade the triangular region. Our equations are x – y = −1 3x + 2y = 12 Putting x = 0 0 − y = −1 −y = −1 y = 1 So, x = 0, y = 1 is a solution i.e. (0, 1) is a solution Putting y = 0 x − 0 = −1 x = −1 So, x = −1, y = 0 is a solution i.e. (−1, 0) is a solution Putting x = 0 3(0) + 2y = 12 2y = 12 y = 12/2 y = 6 So, x = 0, y = 6 is a solution i.e. (0, 6) is a solution Putting y = 0 3x + 2(0) = 12 3x = 12 x = 12/3 x = 4 So, x = 4, y = 0 is a solution i.e. (4, 0) is a solution We will plot both equations on the graph Therefore, the Required triangle is the triangle with vertices (2, 3), (–1, 0) & (4, 0)