CBSE Class 10-Mathematics: Chapter –2 Polynomials Part 1

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1 Mark Questions

Question 1:

The graphs of are given to us, for some polynomials . Find the number of zeroes of , in each case.

(i)

Que-1-(i)-Image of Polynomials

Image of Polynomials

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(ii)

Que-1-(ii)-Image of Polynomials

(II)-Image of Polynomials

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(iii)

Que-1-(iii)-Image of Polynomials

(III)-Image of Polynomials

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(iv)

Que-1-(v)-Image of Polynomials

(V)-Image of Polynomials

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(v)

Que-1-(v)-Image of Polynomials

(V)-Image of Polynomials

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(vi)

Que-1-(vi)-Image of Polynomials

(VI)-Image of Polynomials

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Answer:

(i) The graph does not meet x-axis at all. Hence, it does not have any zero.

(ii) Graph meets x-axis time. It means this polynomial has zero.

(iii) Graph meets x-axis times. Therefore, it has zeroes.

(iv) Graph meets x-axis times. Therefore, it has zeroes.

(v) Graph meets x-axis times. It means it has zeroes.

(vi) Graph meets x-axis 3 times. It means it has 3 zeroes

Question 2:

Which of the following is polynomial?

(a)

(b)

(c)

(d) None of these

Answer:

(d) None of these

Question 3:

Polynomial is a

(a) Linear polynomial

(b) Quadratic polynomial

(c) Cubic polynomial

(d) Bi-quadratic polynomial

Answer:

(d) Bi-quadratic polynomial