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If the degree of (r(x)=kx^3+2x^2+1) is (2), what is correct about (k)?

Answer and explanation

Correct answer: k=0

The degree of a polynomial is determined by the highest-power term whose coefficient is non-zero. Here, if k has any non-zero value, the term kx³ remains and the polynomial has degree 3. To make the degree 2, the x³ term must vanish; hence k=0. Exam tip: In parameter-based polynomials, check the coefficient of the highest-power term first.

Related tags

PolynomialsDegree Of PolynomialCoefficientParameterGrade 9 MathematicsDefinition Of A PolynomialIntroduction To PolynomialsMathematics

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