3.5 Exercise 15

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.

ⓐ $\left\{\left(27 , −3\right) , \left(8 , −2\right) , \left(1 , −1\right) , \left(0 , 0\right) , \left(1 , 1\right) , \left(8 , 2\right) , \left(27 , 3\right)\right\}$

ⓑ $\left\{\left(7 , −3\right) , \left(−5 , −4\right) , \left(8 , 0\right) , \left(0 , 0\right) , \left(−6 , 4\right) , \left(−2 , 2\right) , \left(−1 , 3\right)\right\}$