Graphs of Functions · Review Exercise 156

For each relation, ⓐ find the domain of the relation ⓑ find the range of the relation.

$\{\left(5,-2\right),\left(5,-4\right),\left(7,-6\right),$
$\left(8,-8\right),\left(9,-10\right)\}$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Intermediate Algebra 2e · §3.6 Graphs of Functions · Review Exercise 156