Question

The domain of the following relation: R: {(3, 5), (8, 6), (2, 1), (8, 6)}

Answer 1

Domain: set of all inputs to a function/relation

Inputs are usually the first coordinate of an ordered pair

Answer 2

So what do you get for the domain?

Answer 3

3 8 2 8

Answer 4

3 8 2

Answer 5

good, so the domain is {3,8,2}