Question

Let D = x be the domain, and let ƒ(x) = “date of birth” be the possible function. Determine if the relation is an example of a function.

Answer 1

It is.

The function is just another way of saying to transfer something from domain A to domain B.

`f(x)=y:A\longrightarrow B; x\in A, y\in B`

Now your function states:

`D=\{x\} \\</p><p>f(x)=y: D\longrightarrow E; x\in D, y\in E`