Plot the following points on the one and the same co-ordinate system.

A(1, 3), B(-3, -1), C(1, -4),

D(-2, 3), E(0, -8), F(1, 0)

Some points are shown in the figure 7.11

With the help of it answer the following questions :

i. Write the co-ordinates of the points Q and R.

ii. Write the co-ordinates of the points T and M.

iii. Which point lies in the third quadrant?

iv. Which are the points whose x and y co-ordinates are equal?

Without plotting the points on a graph, state in which quadrant or on which axis do the following point lie.

i. (5, -3) ii. (-7, -12)

iii. (-23, 4) iv. (-9, 5)

v. (0, -3) vi. (-6, 0)

In the graph alongside, line LM is parallel to the Y-axis. (Fig. 7.12)

i. What is the distance of line LM from the Y-axis?

ii. Write the co-ordinates of the points P, Q and R.

iii. What is the difference between the x co-ordinates of the points L and M?

How many lines are there which are parallel to X-axis and having a distance 5 units?