(i) (2, 3), (4, 1)
(ii) (-5, 7), (-1, 3)(iii) (a, b), (- a, – b)
We know that formula to find the distance (d) between two points 
and 
is:
(i) Given, the pair of points is (2, 3), (4, 1).
The distance between these two points is:
(ii) Given, the pair of points is (-5, 7), (-1, 3).
The distance between these two points is:
(iii) Given, the pair of points is (a, b), (- a, – b).
The distance between these two points is:
