Is it a function

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No

Does this graph represent a function?

Yes

Does this graph represent a function?

No

Does this mapping represent a function?

Yes

Does this mapping represent a function?

No

Does this set of ordered pairs represent a function? (2 , -7) ( 8 , 5) ( 14 , 6 ) ( 2 , 13 )

Yes

Does this set of ordered pairs represent a function? (3 , 8) ( 1 , 8 ) ( 14 , 8) ( 12 , 8 )

No

Does this set of ordered pairs represent a function? (4 , -7) ( 4 , 0) ( 0.9 , 19) ( 2 , 7 )

Yes

Does this set of ordered pairs represent a function? (4 , -7) (-4 , 0) ( 0.9 , 19) ( 2 , 7 )

No

Does this set of ordered pairs represent a function? (8, 1) ( 8 , 10 ) ( 8 , 4) ( 8 , 21 )

No

Does this table represent a function?

Yes

Does this table represent a function?

Relation

a set of ordered pairs

Function

a special relation where each x-value has exactly one y-value

Vertical Line Test

draw a vertical line through the graph; if it crosses more than once it is NOT a function

independent

the variable that is represented on the x-axis

dependent

the variable that is represented on the y-axis; it's value depends on the x-values

Domain

the x-values in a relation; the input

Range

the y-values in a relation; the output


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