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Which of the following relations shows a constant decay represented by a linear polynomial?

Answer and explanation

Correct answer: \(y=40-3x\)

In \(y=40-3x\), the highest power of \(x\) is 1, and the coefficient \(-3\) means \(y\) decreases by 3 when \(x\) increases by 1. \(40-3x^2\) is quadratic. Exam tip: a linear polynomial has degree 1.

Related tags

Linear PolynomialLinear DecayDegree Of PolynomialAlgebraClass 9 MathematicsLinear Growth And DecayIntroduction To PolynomialsMathematics

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