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Is (\frac{x}{2}+3) a polynomial in (x)?

Answer and explanation

Correct answer: Yes, because the power of the variable is (1)

A fraction appearing in an expression does not automatically make it non-polynomial. We must check whether the variable itself has an allowed power. A numerical fraction can be a coefficient, and coefficients such as \\(\frac{1}{2}\\) are permitted in polynomials. The important restriction concerns powers of the variable, not every fraction seen in the expression.

Rewrite the first term as \\(\frac{x}{2}=\frac{1}{2}x^1\\). Thus the power of x is 1, a non-negative integer, while 3 is a constant term with power 0. Both terms satisfy the polynomial rule, so \\(\frac{x}{2}+3\\) is a polynomial in x. Therefore option B is correct. It is not rejected merely because its coefficient is fractional.

Related tags

PolynomialFraction CoefficientDefinition

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