State the domain and range of the following relation.

X: 2,6,-2,0,4
Y: 7,8,5,6,8

3 answers

The domain of the relation is the set of x-values, which in this case is {2, 6, -2, 0, 4}.

The range of the relation is the set of y-values, which in this case is {7, 8, 5, 6, 8}.
is it a function or not?
In order for the relation to be a function, each x-value must have only one corresponding y-value.

Looking at the given sets X and Y:

X: 2, 6, -2, 0, 4
Y: 7, 8, 5, 6, 8

We can see that each x-value has a unique y-value. Therefore, the relation is a function.