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 = 6

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.

Solve graphically, the simultaneous equations : 2x - 3y = 7; x + 6y = 11.