Thread:HMcCoy/@comment-28838092-20140825225626/@comment-24808864-20140825230847

Sure bud, what do you got?

Generally speaking, the dirty version is that the domain is the set of all values of x that you are allowed to use in a function. The range is the set of all y (or f(x)) values that it is possible to get out of a function.

Dependending on whether you are using a rule for f(x), a table of values, or a graph, the actual mechanical process varies slightly, but it is either the "allowed" or the "possible."

I am not quite sure what you mean by "using the theory to contradict them." Can you provide a screenshot of an example, or explain in more detail what the professor is expecting you to do?