IXL | Relations: convert between mappings, tables, graphs, and ordered pairs

Express the relation below as a set of ordered pairs.

Input

Output

Fill in all the blanks.

i
20
,
i
i
14
,
i
i
5
,
i
i
12
,
i

ref_doc_title.

Learn with an example

question

Express the relation below as a set of ordered pairs.

Input

Output

Fill in all the blanks.

i
,
7
i
i
,
10
i
i
,
13
i
i
,
18
i

key idea

A relation that is shown as a mapping diagram can also be written as a set of ordered pairs.

Each arrow in the diagram can be written as a single ordered

pair.

The arrow goes from the

-value

to the

-value

of the pair. The

-value

is the first coordinate of the ordered pair, and the

-value

is the second coordinate.

solution

Look at the set of ordered pairs:

(
?
,
7
)
(
?
,
10
)
(
?
,
13
)
(
?
,
18
)

The first missing number is in

(

)

This ordered pair is missing its

-coordinate

and has a

-coordinate

of 7. To determine the

-coordinate

for this pair, find the arrow in the diagram that points to 7 and write it as an ordered pair.

Input

Output

The ordered pair is

(

)

So, the

-coordinate

is 2.

The second missing number is in

(

)

This ordered pair is missing its

-coordinate

and has a

-coordinate

of 10. To determine the

-coordinate

for this pair, find the arrow in the diagram that points to 10 and write it as an ordered pair.

Input

Output

The ordered pair is

(

)

So, the

-coordinate

is 8.

The third missing number is in

(

)

This ordered pair is missing its

-coordinate

and has a

-coordinate

of 13. To determine the

-coordinate

for this pair, find the arrow in the diagram that points to 13 and write it as an ordered pair.

Input

Output

The ordered pair is

(

)

So, the

-coordinate

is 4.

The fourth missing number is in

(

)

This ordered pair is missing its

-coordinate

and has a

-coordinate

of 18. To determine the

-coordinate

for this pair, find the arrow in the diagram that points to 18 and write it as an ordered pair.

Input

Output

The ordered pair is

(

)

So, the

-coordinate

is 18.

Here is what the completed set of ordered pairs should look like:

(
2
,
7
)
(
8
,
10
)
(
4
,
13
)
(
18
,
18
)

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Lesson: Relations and functions

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