Functions, Functions, Functions

Front

What is a function?

Back

A function is a relation where every input has only ONE output.

Front

What are the inputs of a function called?

Back

Inputs are called the Domain.

Front

What are the outputs of a function called?

Back

Outputs are called the Range.

Front

Which ordered pair could you add to the following list of points to create a function? (3, 5) (4, 9) (2, 5)

Back

(1, 9)

Front

Does the relation (3, 5), (4, 9), (2, 5), (3, 7) represent a function?

Back

No

Front

Is the relation (1, 2), (1, 3), (2, 4) a function?

Back

Not a Function

Front

What is the vertical line test?

Back

A method to determine if a relation is a function; if a vertical line crosses the graph more than once, it is not a function.

Front

If a function has the ordered pairs (2, 3), (3, 5), (4, 7), what is the output when the input is 3?

Back

5

Front

What does it mean for a function to be one-to-one?

Back

Each output is paired with exactly one input.

Front

What is the range of the function defined by the ordered pairs (1, 2), (2, 3), (3, 4)?

Back

The range is {2, 3, 4}.