Question

(d) 0
1
Name the shape in which the wire is bent
(a) Spiral (b) Ellips
(c) Linear
(d) Parabola
How many zeroes are there for the polynomial (shape of the wire)
(a) 2
(b)3
(c) 1
The zeroes of the polynomial are
(a) -1,5
(b)-1,3
(d) -4,2
What will be the expression of the polynomial?
(a) x² + 2x-3 0)x - 2x + 3 (c) x² - 2x-3 (d) x2 + 2x + 3
What is the value of the polynomial if x=-1?
(b) - 18
(*) 3,5
1
e
(c) 18
18
Case study based - 2
the 911

Answer 1

Answer:

(i) parabola

(ii) (a) 2

(iii) (b) (-1,3)

(iv) (c) x²-2x-3

(v) (d) 0

Step-by-step explanation:

(ii) pints of intersection at x-axis

(iv) α=-1 β=3

α+β= -1 + 3 = 2

αβ = -1 x 3 = -3

x² - (α+β)X + αβ

=⟩ x² - (2)x +(-3)

x² - 2x - 3

(v) p(x) = x²- 2x - 3

p(-1) = (-1)² - 2(-1) - 3

= 1 + 2 - 3 = 0