Relation and Function Test

• Mapping Diagrams

• Ordered Pairs

• Function Table

• Vertical Line Test

• Ordered Pairs

• Mapping Diagrams

• Function Table

• Relation

• {-2, 3, 7}

• [-2, 7]

• {1, 2, 3, 4}

• [1, 4]

List the inputs of the relation

• {2, 4, 6}

• {1, 2, 3}

• {(2,1) (4,2) (6,3)}

• {(1,2) (2,4) (3,6)}

When the ordered pair (2,2) is added to the table, the table ​ (a)   represent y as a function of x because each value of x ​ ​ (b)   correspond to a unique value of y.

• will not

• will

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

• not a function

• an input maps to more than one output

• each output maps to exactly one input

• a function

• each input maps to exactly one output.

• both a function and one-to-one

The relation ​ (a)   a function.

• is not

• is

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.

Determine if the graph is a function. `​​ (a)   `

• Function

• Not a Function

Determine if the graph is a function. `​ (a)   `

• Not a Function

• Function