Due to heavy storm an electric wire got bent as shown in the figure

Question 20 Due to heavy storm an electric wire got bent as shown in the figure. It followed a mathematical shape. Answer the following questions below.Question 20 (i) Name the shape in which the wire is bent (a) Spiral (b) ellipse (c) linear (d) ParabolaParabola 1 marks Question 20 (ii) How many zeroes are there for the polynomial (shape of the wire) (a) 2 (b) 3 (d) 1 (d) 0Since polynomial hits the x-axis at 2 points ∴ Number of zeros = 2 1 marks Question 20 (iii) The zeroes of the polynomial are (a) –1, 5 (b) –1, 3 (c) 3, 5 (d) –4, 2Zero of polynomial would be where curve touches the x-axis ∴ Zeroes are −1 and 3 1 marks Question 20 (iv) What will be the expression of the polynomial? (a) x2 + 2x – 3 (b) x2 – 2x +3 (c) x2 – 2x – 3 (d) x2 + 2x + 3Since Zeroes are −1 and 3 Polynomial = (x − (−1)) (x − 3) = (x + 1) (x − 3) = x (x − 3) + 1 (x − 3) = x2 − 3x + x − 3 = x2 − 2x − 3 1 marks Question 20 (v) What is the value of the polynomial if x = –1? (a) 6 (b) –18 (c) 18 (d) 0At x = −1 Value of Polynomial is 0 1 marks