On the same graph paper, plot the graphs of y = 2x - 1, y = 2x and y = 2x + 1 from x = - 2 to x = 4. Are the graphs (lines) drawn parallel to each other ?

The graph of 3x + 2y = 6 meets the x-axis at point P and the y-axis at point Q. Use the graphical method to find the co-ordinates of points P and Q.

For the equation 2x - 5y = 8; slope is :

1. 5

2. $-\dfrac{2}{5}$

3. 8

4. $\dfrac{2}{5}$

For the equation 5x - 6y = 9, the y-intercept is :

1. $\dfrac{3}{2}$

2. $\dfrac{5}{6}$

3. $\dfrac{6}{5}$

4. $-\dfrac{3}{2}$