Draw the graph of 5x + 6y - 30 = 0 and use it to find the area of the triangle formed by the line and coordinate axes.

Draw the graph of 4x - 3y + 12 = 0 and use it to find the area of the triangle formed by the line and co-ordinate axes. Take 2 cm = 1 unit on both axes.

Draw the graph of 3y = 12 - 2x. Take 2 cm = 1 unit on both axes.

Draw the graph of the following linear equation :

2x + y + 3 = 0