Sadhana Bhadoriya

Ex – 3.2 Que No. 1(ii) Q.1) Solve the following pair of linear equations by the substitution method (ii). s – t = 3s/3 + t/2 = 6

Ex – 3.2 Que No. 1(i) Q.1) Solve the following pair of linear equations by the substitution method (i). x + y = 14x – y = 4

Ex – 3.1 Que No. 7 Q.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. Solution:–

Ex – 3.1 Que No. 6(iii) Q.6) Given the linear equation 2x + 3y – 8 = 0, write another linear equation in two variables such that the geometrical representation of the pair so formed is: (iii). Coincident Lines Solution:–

Ex – 3.1 Que No. 6(ii) Q.6) Given the linear equation 2x + 3y – 8 = 0, write another linear equation in two variables such that the geometrical representation of the pair so formed is: (ii). Parallel lines Solution:–

Ex – 3.1 Que No. 6(i) Q.6) Given the linear equation 2x + 3y – 8 = 0, write another linear equation in two variables such that the geometrical representation of the pair so formed is: (i). Intersecting lines Solution:–

Ex – 3.1 Que No. 5 Q.5) Half the perimeter of a rectangular garden, whose length is 4 m more than its width, is36 m. Find the dimensions of the garden. Solution:–

Ex – 3.1 Que No. 4(iv) Q.4) Which of the following pairs of linear equations are consistent/inconsistent? If consistent, obtain the solution graphically: (iv). 2x – 2y – 2 = 04x – 4y – 5 = 0 Solution:–

Ex – 3.1 Que No. 4(iii) Q.4) Which of the following pairs of linear equations are consistent/inconsistent? If consistent, obtain the solution graphically: (iii). 2x + y – 6 = 04x – 2y – 4 = 0 Solution:–

Ex – 3.1 Que No. 4(ii) Q.4) Which of the following pairs of linear equations are consistent/inconsistent? If consistent, obtain the solution graphically: (ii). x – y = 83x – 3y = 16 Solution:–