Polynomials in One VariablePractice Questions & MCQs
Practice Polynomials in One Variable questions from Polynomials (Class 9 Maths) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Polynomials in One VariableQuiz - Solve & Score
Q1. A student copies the expression 3x^5 + 2x^3 - 7x + 4 from the blackboard; what is the degree of this polynomial in x?
- A.4
- B.3
- C.5
- D.6
Answer: C. 5
The degree is the highest power of x with a non-zero coefficient. In 3x^5 + 2x^3 - 7x + 4 the greatest power present is 5, so the degree is 5.
Q2. A coding club represents a cost curve by the polynomial 2x^4 - 5x^2 + 1; what degree does it have?
- A.5
- B.4
- C.2
- D.3
Answer: B. 4
The degree is the highest power of x with a non-zero coefficient. In 2x^4 - 5x^2 + 1 the greatest power present is 4, so the degree is 4.
Q3. During a maths quiz the host reads out the polynomial 6x^3 + 1x^2 - 2x; what is its degree?
- A.4
- B.3
- C.2
- D.101
Answer: B. 3
The degree is the highest power of x with a non-zero coefficient. In 6x^3 + 1x^2 - 2x the greatest power present is 3, so the degree is 3.
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Are these Polynomials in One Variable questions important for the exam?
Yes. These Polynomials in One Variable important questions follow the Maths exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
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