Class 9 · Mathematics · Ganita Manjari

2. Introduction to Linear Polynomials

Try question 1

The degree of the polynomial 3x + 2 is

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Answer and explanation

Answer: B. 1

The highest power of x is 1, so it is linear.

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Try question 2

The zero of the polynomial 2x − 6 is

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Answer and explanation

Answer: B. 3

2x − 6 = 0 gives x = 3.

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Try question 3

The graph of y = 2x + 1 is

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Answer and explanation

Answer: A. a straight line

A linear polynomial always gives a straight-line graph.

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