Functions, Functions, Functions

Front

What is a function?

Back

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

Tags

CCSS.8.F.A.1

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for a function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for a function.

Front

How can you determine if a relation is a function?

Back

A relation is a function if no x-value is paired with more than one y-value.

Tags

CCSS.8.F.A.1

Front

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

Back

If a graph is not a function, it means that at least one x-value is paired with multiple y-values.

Front

What is an example of a function?

Back

(2, 3), (3, 5), (4, 7) is a function because each x-value is unique.

Tags

CCSS.8.F.A.1

Front

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

Back

(1, 2), (1, 3) is not a function because the x-value 1 has two different y-values.

Tags

CCSS.8.F.A.1

Front

What is the vertical line test?

Back

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

Front

What is a one-to-one function?

Back

A one-to-one function is a function where each output value is paired with exactly one input value.

Front

What is a many-to-one function?

Back

A many-to-one function is a function where multiple input values can produce the same output value.

Tags

CCSS.8.F.A.1