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Subjects
Class 11MathematicsRelations and FunctionsReal-Valued Functions, Their Domain and RangeEasy
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If f(x) = x² + 2x + 1, what is the value of f(1)?

Answer and explanation

Correct answer: 4

Substitute x = 1 into each term: f(1) = 1² + 2(1) + 1 = 1 + 2 + 1 = 4. Therefore, option A is correct.

Related tags

Function-ValueQuadratic-FunctionSubstitutionReal Valued FunctionsTheir Domain And RangeReal Valued Functions Their Domain And RangeRelations And FunctionsMathematicsClass 11 Mcq
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