Solution:
Graphical method to find zeroes:-
Total number of zeroes in any polynomial equation = Total number of times the curve intersects the x-axis.
(i) The graph is parallel to x-axis does not cut it at any point.
Thus, the number of zeroes of p(x) = 0
(ii) The graph intersects the x-axis at only one point.
Thus, the number of zeroes of p(x) = 1
(iii) The graph intersects the x-axis at any three points.
Thus, the number of zeroes of p(x) = 3
(iv) The graph intersects the x-axis at two points.
Thus, the number of zeroes of p(x) = 2
(v) The graph intersects the x-axis at four points.
Thus, the number of zeroes of p(x) = 4
(vi) The graph intersects the x-axis at three points.
Thus, the number of zeroes of p(x) = 3