If a < 0 and b < 0, then the point P(a, b) lies in
(a) quadrant IV
(b) quadrant II
(c) quadrant III
(d) quadrant I

Solution :

(c) quadrant III

Explanation:
Points of the type (-,-) lie in the third quadrant.
Hence, the point P(a,b), where a < 0 and b < 0, lie in quadrant III.