Function or Not

Front

What is a function?

Back

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

Front

What is a relation?

Back

A relation is a set of ordered pairs, where each pair consists of an input and an output.

Front

What does it mean for a set of ordered pairs to be 'not a function'?

Back

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

Front

How can you determine if a mapping diagram represents a function?

Back

Check if each x-value has only one y-value paired with it.

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

What is an example of a function?

Back

The set of ordered pairs {(1, 2), (2, 3), (3, 4)} is a function because each x-value has one y-value.

Front

What is an example of 'not a function'?

Back

The set of ordered pairs {(1, 2), (1, 3), (2, 4)} is not a function because the x-value 1 has two different y-values.

Front

What is a mapping diagram?

Back

A visual representation of a function that shows how each input is paired with an output.

Front

What does it mean if a graph is 'not a function'?

Back

It means that there is at least one x-value that corresponds to multiple y-values.

Front

What is a table of values?

Back

A table that lists pairs of x-values and their corresponding y-values.