Question
For the following relation, give the domain and range, and indicate whether it is a function.
{(1,2),(6,3),(3,1),(8,7)}
{(1,2),(6,3),(3,1),(8,7)}
Answers
Steve
the domain is the set of 1st elements (x) of each pair.
the range is the set of 2nd elements (y).
It is a function if no x is paired with more than one y. That is, if each pair has a unique x.
the range is the set of 2nd elements (y).
It is a function if no x is paired with more than one y. That is, if each pair has a unique x.