Question

What is the domain of f?

Answer 1

Domain is x while range is y. Domain: -4,-1,0,2,7

Answer 2

Domain for this particular relation (which is a function) is:

{-4,-1,0,2,7}.

This is choice A.

Explanation:

The domain is every number in the first circle (reading from left to right) that has an arrow drawn from it.

The range is every number in the second circle (reading from left to right) that has an arrow drawn to it.

So the domain is {-4,-1,0,2,7} and the range is {-5,0,1,2,4}.

(They say this relation is a function because every element in the domain has no more than one arrow drawn from it.)