IXL | Domain and range of functions

What is the range of this function?

(
6
,
4
)
(
–
2
,
0
)
(
0
,
1
)
(
2
,
4
)
(
–
8
,
6
)

{

–

}

{

}

{

}

{

–

}

ref_doc_title.

Learn with an example

question

What is the range of this function?

{

–

}

{

–

}

{

–

}

{

–

}

key idea

A function is any set of ordered pairs where every input, or

x-value,

has exactly one output, or

y-value.

The range of a function is the set of

y-values

of those ordered pairs.

solution

This graph shows a function.

To find the range, find the

y-values

of the ordered pairs.

(

–

)

(

–

)

(

–

)

(

)

(

–

)

(

)

The range is

{

–

}

Notice that even though 4 is the

y-value

of more than one ordered pair, it only needs to be listed once.

Looking for more? Try these:

Lesson: Domain and range

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Teacher tools

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R.2Objects on a coordinate plane

Lesson: Domain and range

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