Domain and Range

Front

What is the domain of a relation?

Back

The set of all x-values.

Front

What is the range of a relation?

Back

The set of all y-values.

Front

Which relation has a domain of {3,7} and a range of {0,5}?

Back

(3,0), (7,0), (3,5), (7,5)

Front

What does the vertical line test determine?

Back

Whether a relation is a function.

Front

What is a function?

Back

A relation where each x-value has only one y-value.

Front

Is the relation {(1,2), (1,3)} a function? Why?

Back

No, because the x-value 1 has two y-values.

Front

What is an example of a domain?

Back

The set {1, 2, 3}.

Front

What is an example of a range?

Back

The set {4, 5, 6}.

Front

If a relation has the pairs (2,3), (2,4), (3,5), is it a function?

Back

No, because the x-value 2 has two y-values.

Front

What does it mean if a graph passes the vertical line test?

Back

It means the relation is a function.