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
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Answered by
4
Explanation:
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05parul:
class 10
Answered by
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
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