Mapping Diagrams - Functions

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input. In other words, for every input value, there is a unique output value.

Tags

CCSS.8.F.A.1

Front

Is the cost of purchasing t-shirts from a souvenir shop a function?

Back

Yes, because each quantity of t-shirts purchased corresponds to a specific cost.

Tags

CCSS.8.F.A.3

Front

What is a mapping diagram?

Back

A mapping diagram is a visual representation of a function that shows how each input is paired with an output.

Tags

CCSS.8.F.A.1

Front

What does it mean if a mapping diagram is a function?

Back

It means that each input value is associated with exactly one output value.

Tags

CCSS.8.F.A.1

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to represent a point in a coordinate system, typically written as (x, y).

Tags

CCSS.5.G.A.1

Front

In the ordered pair (7, -3), what is the input and what is the output?

Back

7 is the input, and -3 is the output.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the missing input number if the output is 6?

Back

The missing input number is 6.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the missing output number if the input is 4 and the function rule is y = 2x - 1?

Back

The missing output number is 7.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

Which of the following is a valid function: {(1, 2), (1, 3), (2, 4)}?

Back

No, because the input 1 is associated with two different outputs (2 and 3).

Tags

CCSS.8.F.A.1

Front

True or False: A mapping diagram can represent a function if it has multiple outputs for a single input.

Back

False.

Tags

CCSS.8.F.A.1