Relations and Functions · Try It 3

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 function.
ⓐ $\left\{\left(-3,-6\right),\left(-2,-4\right),\left(-1,-2\right),\left(0,0\right),\left(1,2\right),\left(2,4\right),\left(3,6\right)\right\}$
ⓑ $\left\{\left(8,-4\right),\left(4,-2\right),\left(2,-1\right),\left(0,0\right),\left(2,1\right),\left(4,2\right),\left(8,4\right)\right\}$

OpenStax, Intermediate Algebra 2e · §3.5 Relations and Functions · Try It 3