Draw the graph of the equation 5x + 4y + 20 = 0. From the graph, find theco-ordinates of the point when i) x = 0 ii) y= - 5.

31
A two-digit number is 4 more than 6 times the sum of its digits. If 18 issubtracted from the number, the digits are reversed. Find the number.
32
Find the value of k for which the system of equations have a unique
x - ky = 2, 3x+ 2y = - 5.
33
Find graphically the vertices of the triangle whose sides have the equations.2y - x = 8; 5y – x = 14; y – 2x = 1.
34
Draw the graph of the following equation and check whether (a) x = 2, y =5 (b) x = -1, y = 3 are solutions of 5 x + 3y = 4.