Function

The diagram represents a function.

which of the following inputs and outputs that can be added to the diagram to maintain the function?

• Input: -10

  Output: 100

• Input: 10

  Output: 200

• Input: -20

  Output: 100

• Input: 20

  Output: 400

• Input: 30

  Output: 300

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Select ALL equations that define y as a function of x.

• y = 4x + 3

• x = 4y + 3

• x = 0y + 3

• y = 0x + 3

Tags

CCSS.8.F.A.1

Which statement correctly describes a function?

• Each input maps to exact one output

• Each input maps to at least one output

• Each input must map to more than one input

• Each output must only map to exactly one input

Tags

CCSS.8.F.A.1

Select all of the tables that do NOT represent a function.

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Tags

CCSS.8.F.A.1

Orwell worked for 5 days making clay pots in his workshop. He records the hours he worked and the number of pots he made each day in the table shown.

Which statement is true about the relationship between the hours worked and the number of pots made?

• It is a function because the same number of pots are made per hour each day.

• It is not a function because the number of hours worked is the same for two different days.

• It is not a function because a different number of pots are made in the same amount of time on two different days.

• It is a function because the number of hours worked and number of pots are made listed once for each day in the table.

Tags

CCSS.8.F.A.1

Select all the graphs that represent a relation in which y is a function of x.

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Which graph does NOT represent a function of y in terms of x?

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A set of ordered pairs (x, y) is shown.

 

{ (2, 4) , (2, 6) , (3, 4) , (4, 2) , (7, 7) }

 

Which ordered pair can be removed to make y a function of x?

 

• (2, 6)

• (3, 4)

• (4, 2)

• (7, 7)

Tags

CCSS.8.F.A.1

Is this a function?

• Yes

• No

• Maybe

• I like circles

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

• Yes, it is a function because no one failed the test

• Yes, it is a function because the student who studied more hours made the best grade.

• Yes, it is a function because the exam grade increases by 2 points for each hour studied.

• No, it is not a function because the input value of 3 hours has 2 different output values of 78 and 82.

Tags

CCSS.8.F.A.1