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Chapter 2 Class 9 - Ganita Manjari - Short Quiz

Chapter 2 Class 9 - Introduction to Linear Polynomials (Ganita Manjari | 5 questions

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Question 1 of 5
Question 1 of 5
Degree of the polynomial $4 x^4+0 x^3+0 x^5+5 x+7$ is

Correct option: A

Answer: A

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Question 2 of 5
If $p(x)=x+3$, then $p(x)+p(-x)$ is equal to

Correct option: D

Answer: D

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Question 3 of 5
Which of the following is a polynomial of degree 3 in the variable $x$, in which the coefficient of the $x^2$ term is -7 ?

Correct option: C

Answer: C

Hint: A degree of 3 means the highest power of $x$ is $x^3$. Then, look for the term $-7 x^2$.

Solution: Option C has a highest power of 3 (cubic polynomial) and the term $-7 x^2$ correctly gives a coefficient of -7 for $x^2$. Option D is only a degree 2 polynomial.

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Question 4 of 5
What is the constant term of the polynomial $9 x^3+5 x^2-8 x-10$ ?

Correct option: D

Answer: D

Hint: Find the numerical value in the expression that is not multiplied by any variable.

Solution: The constant term is the numerical value without any variable attached to it. Here, the term is -10 .

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Question 5 of 5
Identify the degree of the polynomial $4 z-3$.

Correct option: B

Answer: If a variable doesn't have a visible exponent, what is its assumed power?

Hint: The variable $z$ has an implied exponent of 1. Polynomials of degree 1 are called linear polynomials.

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