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Which linear polynomial represents a quantity that decreases at a constant rate as the independent variable increases and has an initial value of 180?

Answer and explanation

Correct answer: \(P(x)=180-4x\)

In \(P(x)=180-4x\), the constant term 180 gives the initial value, while the coefficient \(-4\) shows a decrease of 4 per unit increase in \(x\). Option A represents growth. Exam tip: a negative coefficient of \(x\) indicates linear decay.

Related tags

PolynomialsLinear PolynomialLinear DecayCoefficientConstant TermClass 9 MathematicsLinear Growth And DecayIntroduction To Polynomials

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