Class 9 Mathematics Chapter 2: Introduction to Linear Polynomials — practice questions with answers
Free practice for Class 9 Mathematics, Chapter 2: Introduction to Linear Polynomials. Try the solved questions below, then take a free test with instant marking and explanations.
58 questions24 easy, 23 medium, 11 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. Raju buys x boxes with 4 pens each and y boxes with 5 pencils each, and gets 3 pens free. Which expression gives the total number of pens and pencils?
- 4x + 5y + 3
- 9xy + 3
- 4x + 5y − 3
- x + y + 3
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Answer: A. 4x + 5y + 3
Why: 4x pens, 5y pencils and 3 extra. [p.16]
Why: 4x pens, 5y pencils and 3 extra. [p.16]
Q2. In the expression 4x + 5y + 3, what is 5?
- The coefficient of y
- A variable
- The constant term
- The degree
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Answer: A. The coefficient of y
Why: 3 is the constant term. [p.16]
Why: 3 is the constant term. [p.16]
Q3. What is the degree of the polynomial 5y³ + y² + 2y − 1?
- 3
- 2
- 1
- 5
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Answer: A. 3
Why: The highest power of y is 3. [p.18]
Why: The highest power of y is 3. [p.18]
Q4. A polynomial of degree 2, like x² + 5x + 1, is called a ______ polynomial.
- quadratic
- linear
- cubic
- constant
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Answer: A. quadratic
Why: Degree 1 is linear; degree 3 is cubic. [p.18]
Why: Degree 1 is linear; degree 3 is cubic. [p.18]
Q5. Which of these is a linear polynomial?
- 3z + 7
- z² + 7
- z³ − 1
- 5z² + 2z
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Answer: A. 3z + 7
Why: Its highest power is 1. [p.18]
Why: Its highest power is 1. [p.18]
Q6. A chess club charges ₹200 to join plus ₹50 per match. How much does a player pay for 8 matches (₹)?
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Answer: 600 (± 0)
Why: 200 + 50 × 8 = 600. [p.19]
Why: 200 + 50 × 8 = 600. [p.19]
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Frequently asked questions
How many practice questions are there for Class 9 Mathematics Chapter 2: Introduction to Linear Polynomials?
58 questions (24 easy, 23 medium, 11 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 9 Mathematics syllabus, used by CBSE and many state boards.