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gjhfdfg
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I have dw:1361129696765:dw
Would it be 4 infinity?

yrelhan4
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domain right?

yrelhan4
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it should be all real.

zenai
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domain is all real numbers, there's no value that X cannot be.

gjhfdfg
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What do you mean?

zenai
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however if it was f(x) = 1/x for example, x could not be zero and thus the domain would be (infinity, 0) (0, infinity)

yrelhan4
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(infinity, infinity)

zenai
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if you substitute in any value for X in your function, it will still work. therefore all reals or (infinity, infinity) would work for the domain.

gjhfdfg
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Ah, okay got it thanks.!