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For which value will ((r-9)x-3) not remain a linear polynomial?

Answer and explanation

Correct answer: r=9

In a linear polynomial, the coefficient of x must be non-zero. On putting r=9, (r-9)x-3=(9-9)x-3=-3, which is a constant polynomial of degree 0, not a linear polynomial. For the other values, the coefficient of x is non-zero. Exam tip: In parameter-based linear polynomials, set the coefficient of x equal to zero to find when it ceases to be linear.

Related tags

PolynomialsLinear PolynomialsParametersDegree Of PolynomialClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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