In which quadrants are the points A, B, C and D of problem 5 located ?

Plot the point P(-3, 4). Draw PM and PN perpendiculars to x-axis and y-axis respectively. State the co-ordinates of the points M and N.

Plot the following points on the same graph paper :

$A\Big(2, \dfrac{5}{2}\Big), B\Big(-\dfrac{3}{2}, 3\Big), C\Big(\dfrac{1}{2}, -\dfrac{3}{2}\Big)\text{ and } D\Big(-\dfrac{5}{2}, -\dfrac{1}{2}\Big).$

Plot the following points and check whether they are collinear or not :

(i) (1, 3), (-1, -1) and (-2, -3)

(ii) (1, 2), (2, -1) and (-1, 4)

(iii) (0, 1), (2, -2) and $(\dfrac{2}{3} ,0)$.