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.
(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
ii, i, ii, i, ii
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