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If (Z(t)=16+9t), what is the growth rate?

Answer and explanation

Correct answer: 9

In a linear expression \(Z(t)=a+bt\), the coefficient \(b\) of \(t\) represents the growth rate. Here, the coefficient of \(t\) is \(9\), so the growth rate is 9. The number \(16\) is the initial value, not the growth rate. Exam tip: In a linear function, identify the number multiplying the variable.

Related tags

Linear GrowthGrowth RateCoefficientPolynomialsLinear ExpressionLinear Growth And DecayIntroduction To PolynomialsMathematics

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