CBSE Class 10 Mathematics Standard 2026: question 4
Set in the CBSE Class 10 board exam of 2026, paper 30/1/1, section A, question 4, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q4 · 1 mark · MCQPolynomials
The graph of is given. The number of zeroes of is :
- (A)0
- (B)1
- (C)2
- (D)4
Figure in the paper: Cartesian axes with X'OX horizontal and Y'OY vertical. A wavy curve is drawn that rises on the left, has a hump (local maximum) near the centre, dips, and rises again on the right, lying entirely above the x-axis. See it in the official paper.
Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 30/1/1.
Hints
Open one hint at a time and try again before the next.
Hint 1
Zeroes show up where the graph meets the x-axis.
Hint 2
Count how many times the curve meets the x-axis.
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
The zeroes of are the -coordinates of the points where the graph meets the -axis.
- 1 mark
The curve lies entirely above the -axis and never cuts or touches it. So the number of zeroes is 0. Option (a).
Answer: 0, option (a)
Where the marks are
- Selects 0, option (a) (1 mark)
Revise the chapter
- Chapter: Polynomials (notes, formulas, where marks are lost and every past question)
- Topic: Forming a Quadratic Polynomial from Its Zeros
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The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.