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If (X(t)=8+6t), what is the difference between (X(4)) and (X(0))?

Answer and explanation

Correct answer: 24

Here, \(X(4)=8+6\times4=32\) and \(X(0)=8\). Therefore, the difference is \(32-8=24\). Option 32 is the value of \(X(4)\), not the difference. Exam tip: In a linear expression \(a+bt\), multiply the change in \(t\) by the coefficient \(b\) to find the change in the value quickly.

Related tags

Linear GrowthLinear PolynomialFunction EvaluationDifferenceLinear Growth And DecayIntroduction To PolynomialsMathematicsClass 9 Mcq

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