## Intermediate Algebra (12th Edition)

$\text{ a function }\\\text{Domain: } \{ 2,3,5,11,17 \}\\\text{Range: }\{ 1,7,20 \}$
$\bf{\text{Solution Outline:}}$ To determine if the given diagrams a function, check if the first components are all used only once. The domain is the set of all first components, while the range is the set of all second components. $\bf{\text{Solution Details:}}$ The first components in the given diagram are all being used only once. Hence, the given set is a function. The domain is the set of all first components, while the range is the set of all second components. Hence, the given set of ordered pairs has the following characteristics: \begin{array}{l}\require{cancel} \text{ a function }\\\text{Domain: } \{ 2,3,5,11,17 \}\\\text{Range: }\{ 1,7,20 \} .\end{array}