Sadhana Bhadoriya

Ex – 3.2 Que No. 2 Q.2) Solve 2x + 3y = 11 and 2x – 4y = – 24 and hence find the value of ‘m’ for which y = mx + 3.

Ex – 3.2 Que No. 1(vi) Q.1) Solve the following pair of linear equations by the substitution method (vi). 3/2 x – 5/3 y = -21/3 x – 1/2 y = 13/6

Ex – 3.2 Que No. 1(v) Q.1) Solve the following pair of linear equations by the substitution method (v). √2 x + √3 y = 0√3 x – √8 y = 0

Ex – 3.2 Que No. 1(iv) Q.1) Solve the following pair of linear equations by the substitution method (iv). 0.2x + 0.3y = 1.30.4x + 0.5y = 2.3

Ex – 3.2 Que No. 1(iii) Q.1) Solve the following pair of linear equations by the substitution method (iii). 3x – y = 3 9x – 3y = 9

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:–