Relation Function

It is usually defined as a set of ordered pairs.

• Domain

• Function

• Range

• Relation

It is a set of ordered pairs (x, y) in which no two ordered pairs have the same first element.

• Domain

• Function

• Range

• Relation

Which of the following set is the range of the ordered pairs {(8,10), (5,7), (9,-11), (6,-8)}?

• {5, 6, 9, 10}

• {5, 6, 8, 9}

• {-11, -8, 7, 10}

• {-8, 7, 9, 10}

Which of the following graph is NOT a function?

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Which relation shows a function?

• A

• B

• C

• D

Which relation shows a function?

• A

• B

• C

• D

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Which relation shows a function?

• A

• B

• C

• D

The following mapping is​ ​ (a)   because ​ ​​ ​ (b)   .

• both a function and one-to-one

• neither the x's or y's repeat

• not a function

• each output maps to exactly one input

• a function

• each input maps to exactly one output.

Which relation shows a function?

• A

• B

• C

• D