CASE STUDY QUESTION 2-Class X-Maths
One day, due to heavy storm an electric wire got bent as shown in the figure. It followed
some mathematical shape of curve. Answer the following questions below.
![](https://neutronclasses.com/wp-content/uploads/2021/08/Capture-10.png)
(a) How many zeroes are there for the polynomial (shape of the wire)
(i) 2 (ii) 3 (iii) 4 (iv) 5
(b) Find the zeroes of the polynomial.
(i) 2, 0, -2
(ii) 2, -2, -5
(iii) -2, 2, -5.5
(iv) None of these
(c) Find the quadratic polynomial whose zeroes are -3 and 4.
(i) x2 + 4x + 2 (ii) x2 – x – 12
(iii) x2 – 7x – 12 (iv) None of these
(d) Name the type of expression of the polynomial?
(i) quadratic (ii) cubic (iii) linear (iv) bi-quadratic
(e) If one zero of the polynomial x2 – 5x – 6 is 6 then find the other zero.
(i) 1 (ii) -1 (iii) 2 (iv) -2
Answers:
ii, i, ii, i, ii
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