Question

What are the domain and range of each relation?Just for the second one

Answer 1

Domain: {-4, -3, 1}

Range: {1, 3, 4}

Step-by-step explanation

The domain is the set of all x-values of the relation and the range is the set of all y-values.

In the second relation we have a set of points. We get the domain by selecting the x-coordinates of each point and the range by selecting the y-coordinates:

If the values repeat we just write them once.

The x-coordinates are:

`-4,-4,-3,1`

So the domain is:

`\lbrace-4,-3,1\rbrace`

The y-coordinates are:

`3,4,1,1`

So the range is:

`\lbrace1,3,4\rbrace`