what is the domain for f(x)=x^2+2

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baxthum8 | High School Teacher | (Level 3) Associate Educator

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What is the domain for `f(x) = x^2 + 2` ?

The domain of a function is the set of all possible inputs for which the function is defined.

Notice, that there does not exist any value for x which we could substitute.

Therefore, the domain of the function is the set of all real numbers.

Domain isĀ `(-oo,oo)`

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tonys538 | Student, Undergraduate | (Level 1) Valedictorian

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The function f(x) is defined as f(x)=x^2+2. The domain of a function f(x) is the set of values that x can take for which f(x) is real and defined.

For f(x) = x^2 + 2, the term x^2 is real and defined for all real values of x. The same is the case with 2

As a result the domain of the function f(x)=x^2+2 is the set of real numbers R.

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