Is it a function?

Front

Is this set of ordered pairs a function?

Back

No, it isn't a function because an x value repeats but has different y values.

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

Is this table a function or not a function?

Back

Function.

Front

What does it mean for a relation to be a function?

Back

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

Front

If a set of ordered pairs has the same x-value with different y-values, is it a function?

Back

No, it is not a function.

Front

Can a function have negative numbers as inputs?

Back

Yes, a function can have negative numbers as inputs.

Front

What is an example of a function?

Back

The relation {(1, 2), (2, 3), (3, 4)} is a function.

Front

What is an example of a relation that is not a function?

Back

The relation {(1, 2), (1, 3), (2, 4)} is not a function.

Front

How can you tell if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) of a function.