## Intermediate Algebra (6th Edition)

Domain: {0, $\frac{1}{2}$}, Range: {$\frac{1}{4}$, $\frac{7}{8}$, $\pi$}, No
The domain is the set of all first components of the ordered pairs, or {0, $\frac{1}{2}$}. The range is the set of all second components of the ordered pairs, or {$\frac{1}{4}$, $\frac{7}{8}$, $\pi$}. This relation is not a function because $x=\frac{1}{2}=.5$ corresponds to more than one component in the range.