CBSE Solutions of Maths Class 10 Polynomials - NCERT Mathematics Exercise 2.1

CBSE Solutions and Guide for Class 10 NCERT Mathematics

Chapter 2, Polynomials

Cbse Ncert Solutions of Mathematics Textbook Exercise 2.1

Question 1:

The graphs of y = p(x) are given in following figure, for some polynomials p(x). Find the number of zeroes of p(x), in each case.

(Source: Class 10 NCERT Math Textbook)

Solution:

(i) The number of zeroes is 0 because the graph does not intersect x-axis at any point.

(ii) The number of zeroes is 1 because the graph intersects x-axis at only 1 point.

(iii) The number of zeroes is 3 as the graph intersects x-axis at 3 points.

(iv) The number of zeroes is 2 as the graph intersects x-axis at 2 points.

(v) The number of zeroes is 4 as the graph intersects x-axis at 4 points.

(vi) The number of zeroes is 3 as the graph cuts x-axis at 3 points.

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