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If (g(t)=b-5t) and the sum of (g(2), g(6), g(10)) is (210), what is (b)?

Answer and explanation

Correct answer: 100

Given \(g(t)=b-5t\), we get \(g(2)=b-10\), \(g(6)=b-30\), and \(g(10)=b-50\). Their sum is \((b-10)+(b-30)+(b-50)=3b-90\). Thus, \(3b-90=210\), so \(3b=300\) and \(b=100\). If 105 were used, the sum would be \(225\), not 210. Exam tip: Write each function value separately before combining like terms.

Related tags

Linear FunctionPolynomialFunction ValuesAlgebraic EquationsParameter DeterminationLinear Growth And DecayIntroduction To PolynomialsMathematics

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