Function or Not?

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 vertical line test?

Back

The vertical line test is a method to determine if a graph represents a function. If a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the horizontal line test?

Back

The horizontal line test checks if a function is one-to-one. If a horizontal line intersects the graph at more than one point, the function is not one-to-one.

Front

What does domain mean in a function?

Back

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What does range mean in a function?

Back

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

How can you tell if a set of coordinates represents a function?

Back

A set of coordinates represents a function if no two different ordered pairs have the same x-value.

Tags

CCSS.8.F.A.1

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers (x, y) that represent a point on a graph.

Tags

CCSS.5.G.A.1

Front

Is the set {(1, 2), (2, 3), (3, 4)} a function?

Back

Yes, it is a function because each x-value is unique.

Tags

CCSS.8.F.A.1

Front

Is the set {(1, 2), (1, 3), (2, 4)} a function?

Back

No, it is not a function because the x-value 1 is associated with two different y-values.

Tags

CCSS.8.F.A.1

Front

What is a mapping diagram?

Back

A mapping diagram visually represents the relationship between the domain and range of a function.