Question

11. Case Study Based-1
Parabola: A parabola is the graph that results from p(x)=ax +bx+c. Parabolas are symmetric
about a vertical line known as the Axis of symmetry

(i) Find a quadratic polynomial whose zeroes are 1 and -2
(a)x -x+2 (b)x+x+2 (c) x-x-2 (d) x²+x-2

(ii) Find the number of polynomials having zeroes as - 3 and 7
(a) more than 3 (b) one (c) two
(d) none

(iii) Graph of a quadratic polynomial is a:
(a) straight line
(b) ellipse
(c) parabola (d) spiral

(iv) Zeroes of x-2x-3 are
(a) (-1,5)
(b) (-1,3) (c) (3,5)
(d) (-4,2)

(v) The number of zeroes that polynomial p(x)=x°-4x can have is:
(a) 2
(b) 1
(c) 3
(d) 0​

Answer 1

Answer:

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