CBSE BOARD X, asked by 05parul, 4 months ago

1) Name the shape in which the wire is bent
a) Spiral
b) ellipse
c) linear
d) Parabola

2)How many zeroes are there for the polynomial (shape of the wire)
a) 2
b) 3
c)1
d) 0

iii) The zeroes of the polynomial are
a)-1,5
b)-1,3
c) 3,5
d) -4, 2

iv) What will be the expression of the polynomial?
a) x² + 2x -3
b) x² -2x + 3
c) x² - 2x - 3
d) x² + 2x +3

Attachments:

Answers

Answered by kumkumbilawliya1
4

Explanation:

kon se clàss hài

hiiiiiiiííiií


05parul: class 10
Answered by lilyofthevalley
6

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

Similar questions