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If f(x)=x²−7x+12 and g(x)=x−3, what is the value of (f/g)(4)?

Answer and explanation

Correct answer: 0

The governing concept is the quotient of two functions. For every input where g(x) is non-zero, (f/g)(x)=f(x)/g(x). Evaluate the numerator at x=4: f(4)=4²−7(4)+12=16−28+12=0. Next evaluate the denominator: g(4)=4−3=1. Since the denominator is 1, not zero, the quotient is defined. Consequently, (f/g)(4)=0/1=0, so option A is correct. Option B would be obtained by ignoring the zero numerator and treating the denominator as the answer. Option C is not produced by either evaluation. Option D is also incorrect because a quotient is undefined only when its denominator is zero, and g(4)=1. The calculation therefore gives one unambiguous result.

Related tags

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

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