Basketball and soccer are both played with a spherical ball. Although athletes dribble the ball in both sports, a basketball player uses their hands, while a soccer player uses their feet. of both the soccer ball and the basketball forms a parabola, representing a quadratic polynomial.

Based on the given information, answer the following questions:
(iii) Observe the following graph and answer:
(a) In the above graph, how many zeros are there for the polynomial
(1)
The graph crosses the x-axis three times, so there are three zeros.