Question

State the domain of the following relation and state whether it’s a function.

Answer 1

B.

Explanation:

The Domain is {-8, - 3, 1 , 4} and it is not a function because the value 1 maps on to 2 and -5. A one-to-many relation is not a function.

Answer 2

For this case we have a series of ordered pairs of the form
`(x, y)`.

We have that it is not a function because the same value of the starting set has two values in the arrival set. These are:

`(1,2)\ and\ (1, -5)`

For its part, the domain is given by all values of x, these are:

-8,1, -3 and 4.

Answer:

Option B

Domain: {- 8,3,1,4}; No