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Which of the following polynomials represents a decrease at a constant rate as x increases?

Answer and explanation

Correct answer: \(7-3x\)

\(7-3x\) is a linear polynomial with coefficient \(-3\) of x. Thus, for every increase of 1 in x, its value decreases by 3. In \(x^2-3x+7\), the rate of change is not constant. Exam tip: constant growth or decay requires degree 1.

Related tags

Linear PolynomialsConstant RateLinear DecayPolynomial DegreeAlgebraLinear Growth And DecayIntroduction To PolynomialsMathematics

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