Solve graphically the simultaneous equations given below. Take the scale as 2 cm = 1 unit on both the axes.

x - 2y - 4 = 0
2x + y = 3

Use graph paper for this question. Draw the graph of 2x - y - 1 = 0 and 2x + y = 9 on the same axes. Use 2 cm = 1 unit on both axes and plot only 3 points per line.

Write down the co-ordinates of the point of intersection of the two lines.

Use graph paper for this question. Take 2 cm = 1 unit on both the axes.

(i) Draw the graphs of x + y + 3 = 0 and 3x - 2y + 4 = 0. Plot only three points per line.

(ii) Write down the co-ordinates of the point of intersection of the lines.

(iii) Measure and record the distance of the point of intersection of the lines from the origin in cm.

The sides of a triangle are given by the equations y - 2 = 0; y + 1 = 3 (x - 2) and x + 2y = 0.

Find, graphically :

(i) the area of triangle;

(ii) the co-ordinates of the vertices of the triangle.