Draw the graphs of the following linear equation.

y = 2x - 1

Also find slope and y-intercept of this line.

Draw the graphs of the following linear equation.

2x - 3y = 4

Also find slope and y-intercept of this line.

Draw the graph of the equation 3x - 4y = 12. From the graph, find :

(i) the value of y when x = -4

(ii) the value of x when y = 3.

Three vertices of a parallelogram are A(3, 5), B(3, -1) and C(-1, -3). Plot these points on a graph paper and hence use it to find the coordinates of the fourth vertex D. Also find the coordinates of the mid-point of the side CD. What is the area of the parallelogram?