Question

When a tennis player hits a ball the ball moves up to a certain height , then it comes

down. The path of tennis ball is shown in figure-1 and figure-2.This path is

parabolic in shape.If we plot a graph by taking time in x-axis and height of ball in

y-axis, we get a parabolic graph.

A parabola is the graph that results from p(x)=ax2+bx+c

Based on your understanding of the above case study, answer all the five

questions below:

i)Graph of a quadratic polynomial is a

a) straight line b) circle c)parabola d)ellipse

ii) If the path of the tennis ball is represented graphically, the number of zeros of

a polynomial p(x) is equal to the number of points where the graph of the

polynomial intersect

a) Origin b) x-axis c) y-axis d)none of these

iii) The Zeros of the polynomial () = 2 − − 6 are _______________

a) −3 b) 3 and − 2

c) −3 and 2 d) None of the above

iv) The quadratic polynomial whose sum of the zeroes is 0 and product of

zeros is −1, is ___________

a)() = 2 − 1 b) () = 2 + 1

c) () = 2

d) () = None of the above

v) The number of zeroes that polynomial f(x) = (x – 2)2 + 4 can have is:

a ) 1 b) 2 c) 0 d) 3​

Answer 1

Answer:

When a tennis player hits a ball the ball moves up to a certain height , then it comes down. The path of tennis ball is shown in figure-1 and figure-2. This path is parabolic in shape.

Step-by-step explanation: