Relations and Functions

Front

A horizontal line on a graph is a function. True or False.

Back

True

Front

Is a vertical line a function?

Back

False

Front

Why isn't a vertical line a function?

Back

A vertical line is not a function because the x-value never changes for any y-value.

Front

Order pairs: (3, 8), (5, 4), (1, 9), (2, 7). List the domain.

Back

{1, 2, 3, 5}

Front

What is the range of this function? (3,5) (-3,4), (1, 9), and (4,7)

Back

R: {4, 5, 7, 9}

Front

The domain is the input or x-values of a table and graph. True or False.

Back

True

Front

The domain or input is the independent variable. True or False

Back

False

Front

The range is the dependent variable or output. True or False.

Back

True

Front

This is a function. True or False.

Hint: Use the vertical line test.

Back

False