Question

How do you find the domain of the following relation R (3, -2), (1,2), (-1, -4), (-1, 2)?

Answer 1

Domain = {3, 1, -1}

Explanation:

by using arrow graph, the values at left hand side are domain and right hand side are codomain

`3->-2`
`1 -> 2`
`-1 -> -4`
`-1 -> 2`

Domain = {3, 1, -1}