Is it a function?

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What are the x-values in a function called?

Back

Domain.

Front

What are the y-values in a function called?

Back

Range.

Front

Which of the following is a function? (3,4) (3,5) (4,6) (5,7)

Back

(3,4) (4,6) (5,7) is a function because each x-value is unique.

Front

What does it mean if a relation is not a function?

Back

It means that at least one input (x-value) is associated with more than one output (y-value).

Front

Identify the output for the input x=2 in the function: {(1,3), (2,5), (3,7)}

Back

The output for x=2 is 5.

Front

If a function has the ordered pairs (1,2), (2,3), (3,4), what is the range?

Back

The range is {2, 3, 4}.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

Which ordered pair would prevent this table from being a function? (1,2), (1,3), (2,4)

Back

(1,3) would prevent it from being a function because the input 1 has two different outputs.

Front

What is the definition of a relation?

Back

A relation is a set of ordered pairs.