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Function help: How to know if domain is all real numbers

Answer (1 of 2): The domain is the set values on the x-axis whereas that on the y-axis are called the co-domain. y = x^2 is an example where, if the domain is the set of all real numbers, the co

BioMath: Mathematical Notation

How do you know if a domain is all real numbers? For the cubic function f(x)=x3 f ( x ) = x 3 , the domain is all real numbers because the horizontal extent of the graph is the

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6 Ways to Find the Domain of a Function

Is The Domain Always All Real Numbers The domain of a function can be all real numbers, but there are some cases where the domain is not all real numbers. For example, the domain of

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