## Intermediate Algebra (12th Edition)

The relation $\{(0,-2),(2,-1),(2,-4),(5,3) \}$ $does \text{ } not$ define a function. The set $\{0,2,5\}$ is its $\underline{\text{ domain }},$ and the set $\{-2,-1,-4,3\}$ is its $\underline{\text{ range }}.$
The given relation is not a function because the first component, $2,$ is not unique. The set of first components is the domain. The set of second components is the range.