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Which option has degree 2 and a negative leading coefficient?

Answer and explanation

Correct answer: -4x^2 + 7x - 2

The degree of a polynomial is the highest power with a non-zero coefficient. The leading coefficient is the coefficient of that highest-degree term. In option B, the highest power is x^2, so the degree is 2, and the coefficient of x^2 is -4, which is negative. Thus both conditions are satisfied. Option A also has degree 2, but its leading coefficient is +3. Option C has a negative leading coefficient, -2, but its degree is 3 because of the x^3 term. Option D is linear, with degree 1, and its leading coefficient is +5; its negative constant term does not affect the leading coefficient. Therefore option B is the only complete match.

Related tags

PolynomialDegreeLeading-CoefficientDegree Of A PolynomialIntroduction To PolynomialsMathematicsClass 9 Mcq

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