Math — Functions — Domain and Range Fundamentals + 4 more topics

When we talk about functions, the domain is the set of all possible input values (often 'x') for which the function is defined. The range is the set of all possible output values (often 'y' or 'f(x)') that the function can produce.

When finding the domain and range of more complex functions, you'll often encounter specific situations that restrict possible input values (domain) or output values (range).