Q.

PQ is a diameter of a circle with centre O(2, – 4). If the coordinates of the point P are (– 4, 5), then the coordinates of the point Q will be :

1 (– 3, 4.5)  
2 (– 1, 0.5)  
3 (4, – 5)  
4 (8, – 13)  

Ans.

(4)       (8, – 13)