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For the greatest integer function \(f(x)=\lfloor x\rfloor\), what is the value of \(f(-4)\)?

Answer and explanation

Correct answer: -4

The greatest integer function \(\lfloor x\rfloor\) gives the greatest integer less than or equal to \(x\). Since \(-4\) is itself an integer, \(\lfloor -4\rfloor=-4\), so \(f(-4)=-4\). The value \(-5\) is incorrect because it is less than \(-4\); in exams, remember that the greatest integer function of any integer is the integer itself.

Related tags

Greatest Integer FunctionGraphs Of Standard FunctionsRelations And FunctionsInteger FunctionsEvaluation Of FunctionsMathematicsClass 11 Mcq

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