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Question

The polynomial ax2+bx+c is a linear polynomial if


A

a = 0

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B

b = 0

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C

both a=0, b=0

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D

neither a=0 nor b=0

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Solution

The correct option is A

a = 0


A linear polynomial must be of the form ax+b where a0.
The degree of the given polynomial ax2+bx+c is 2, when a0.
When a=0 the polynomial reduces to the form bx+c and will be a linear polynomial
But when a=0 and b=0 the polynomial will be of the form c which is a constant.
Thus, when a=0 and b0, ax2+bx+c will be a linear polynomial.


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