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If the function f(x) = 2x + 1 is defined on the set A = {0,1,2,3}, what is the range of f?

Answer and explanation

Correct answer: {1,3,5,7}

Evaluate the function at every element of A: f(0)=1, f(1)=3, f(2)=5, and f(3)=7. Therefore, the range is {1,3,5,7}. Remember that the range contains the output values, whereas the elements of A form the domain.

Related tags

Relations And FunctionsFinite DomainRangeLinear FunctionDomain And RangeReal Valued FunctionsTheir Domain And RangeReal Valued Functions Their Domain And RangeMathematics

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