Although math may seem daunting at first, with a little practice it can be easy to clear up any confusion and get better at solving problems.

Most of the functions we have studied in Algebra I are defined for all real numbers. This domain is denoted . For example, the domain of f (x) = 2x + 5 is , because f (x) is defined for all real

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Although math may seem daunting at first, with a little practice it can be easy to clear up any confusion and get better at solving problems.

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The domain of a function is the set of all possible inputs for the function. For example, the domain of f (x)=x² is all real numbers, and the domain of g (x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited. Sort by:

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