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If \(f(x)=x^2-6x+9\) and \(g(x)=x-3\), what is the value of the quotient function \(\left(\frac{f}{g}\right)(5)\)?

Answer and explanation

Correct answer: 2

For a quotient function, the denominator must be non-zero. Since \(f(x)=x^2-6x+9=(x-3)^2\), we get \(\left(\frac{f}{g}\right)(x)=\frac{(x-3)^2}{x-3}=x-3\), for \(x\neq 3\). Therefore, \(\left(\frac{f}{g}\right)(5)=5-3=2\). The value 4 is only \(f(5)\), not the quotient. Exam tip: evaluate the numerator and denominator separately, then divide.

Related tags

Relations-FunctionsAlgebra-Real-FunctionsQuotient-FunctionsFunction-EvaluationAlgebra Of Real FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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