Question

Does the relation define a function? If it does, state the domain of the function.
Does the relation define a function? If it does, state the domain of the function

Answer 1

Answer: Choice A

Yes; Domain = {m, n, p, q}

We have the inputs (think of them as the x values) as m, n, p and q. They make up the domain. The domain is the set of all allowed inputs. We do not have any repeated inputs, which is why we have a function. Any given input leads to exactly one output.