Question

What is the domain of the function below? (0,2 (3,1) (5,2) (8,4)

Answer 1

{0,3,5,8} ok  this0 is the an0sw0er

Answer 2

Domain is always the first number of a function. So for this, it would be (0,3,5,8). But if you have more than one number in the same function than there is no need to "say" it twice. 
Hope it helps! :)