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Sukriti throws a ball upwards, from a rooftop which is 8 m high from ground level. The ball reaches to some maximum height and them returns and hit the ground.It height of the ball at time t (in sec) is represented by h(m), then equation of its path is given as h = -t2 + 2t + 8Based on above information, answer the following :1. The maximum height achieved by ball is(a) 7 m(b) 8 m(c) 9 m(d) 10 m2. The polynomial represented by above graph is(a) linear polynomial(b) quadratic polynomial(c) constant polynomial(d) cubic polynomial3. Time taken by ball to reach maximum height is(a) 2 sec.(b) 4 sec.(c) 1 sec.(d) 2 min.4. Number of zeros of the polynomial whose graph is given is(a) 1(b) 2(c) 0(d) 35. Zeroes of the polynomial are(a) 4(b) -2, 4(c) 2, 4(d) 0, 4 |
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Answer» 1. (c) 9 m 2. (b) quadratic polynomial 3. (c) 1 sec. 4. (b) 2 5. (b) -2, 4 |
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