Relations and Functions · Example 2

Use the set of ordered pairs to (i) determine whether the relation is a function (ii) find the domain of the relation (iii) find the range of the relation.
ⓐ $\left\{\left(-3,27\right),\left(-2,8\right),\left(-1,1\right),\left(0,0\right),\left(1,1\right),\left(2,8\right),\left(3,27\right)\right\}$
ⓑ $\left\{\left(9,-3\right),\left(4,-2\right),\left(1,-1\right),\left(0,0\right),\left(1,1\right),\left(4,2\right),\left(9,3\right)\right\}$

OpenStax, Intermediate Algebra 2e · §3.5 Relations and Functions · Example 2