Exercise 2.1 (Revised) - Chapter 2 - Polynomials - Ncert Solutions class 10 - Maths

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NCERT Solutions Class 10 Maths: Chapter 2 - Polynomials | Comprehensive Answers

Ex 2.1 Question 1:

1. The graphs of $y=p(x)$ are given to us, for some polynomials $p(x)$. Find the number of zeroes of $\mathbf{p}(\mathbf{x})$, in each case.

(iii)

(vi)

Answer.

(i) The given graph does not intersects x-axis at all. Hence, it does not have any zero.
(ii) Given graph intersects x-axis 1 time. It means this polynomial has 1 zero.
(iii) Given graph intersects x-axis 3 times. Therefore, it has 3 zeroes.
(iv) Given graph intersects x-axis 2 times. Therefore, it has 2 zeroes.
(v) Given graph intersects x-axis 4 times. It means it has 4 zeroes.
(vi) Given graph intersects x-axis 3 times. It means it has 3 zeroes.