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Mathematics 7 Online
OpenStudy (anikate):

state the domain of this funtion: x^2 + 4 = f(x) please help.

OpenStudy (anonymous):

The domain is all the values of x the function can be

OpenStudy (anikate):

so how do i do this?? @katemillfloss

OpenStudy (anonymous):

For this problem, the x can be anything

OpenStudy (anonymous):

no number creates a problem for this equation

TheSmartOne (thesmartone):

A function will always have a domain as all real numbers unless the function has a denominator or it has square roots in it

OpenStudy (anikate):

? this one is an imaginary?? @TheSmartOne

OpenStudy (anonymous):

No it doesn't have an imaginary. i is exclusively used for the square root of negative numbers, which does not occur in this problem

OpenStudy (anikate):

so what would be the answer? @katemillfloss

OpenStudy (anonymous):

it would be the set of all real numbers

OpenStudy (anikate):

so the R symbol for all real numbers??

OpenStudy (anonymous):

yes that is acceptable. The big old e with an r like this |dw:1447198500291:dw|

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