Function vs. Not a Function

A function map is shown. 

Which of the following best interprets the function map?

• The function map represents a function because each input in the set x has at most one output in the set y
  

• The function map does not represent a function because there is an input in the set x with more than one output in the set y
  

• The function map represents a function because each input in the set x has more than one output in the set y
  

• The function map does not represent a function because each input in the set x has no more than one output in the set y
  

Tags

CCSS.8.F.A.1

A function map is shown : 

Which of the following best interprets the function map? 

• The mapping represents a function because each input x has more than one output in y
  

• The mapping represents a function because each input x has exactly one output in y
  

• The mapping does not represent a function because each input x has more than one output in y
  

• The mapping does not represent a function because each input x has exactly one output in y
  

Tags

CCSS.8.F.A.1

Three different relations are shown: Relation A, Relation B, and Relation C

Determine whether each relation is a function or does not qualify as a function:

• Relation A and B are functions because the y values do not repeat. Relation C is not a function because the y value does repeat.

• Relation B and C are functions because the x values do not repeat. Relation A is not a function because the x value does repeat.

• Relation A is a function because the y values do not repeat. Relation B and C are not functions because the y value does repeat.

• Relation B and C are functions because the y values do repeat. Relation A is not a function because the y value do not repeat.

Tags

CCSS.8.F.A.1

Three different relations are shown: Relation A, Relation B, and Relation C.

Determine whether each relation is a function or does not qualify as a function:

• Relation A is a function because the y values do not repeat. Relation B and C are not functions because the y value do repeat.

• Relation B and C are functions because the y values do repeat. Relation A is not a function because the y values do not repeat.

• Relation A is a function because the x values do repeat. Relation B and C are not functions because the x values do not repeat.

• Relation B and C are functions because the x values do not repeat. Relation A is not a function because the x values do not repeat.

Tags

CCSS.8.F.A.1

Three relations are shown below: 

Using Desmos and the vertical line test, determine whether each relation qualifies as a function or not a function: 

• Relation A is a function. Relation B and C are not functions.

• Relation A and B are functions. Relation C is not a function.

• Relation B and C are functions. Relation A is not a function.

• Relation A and C are functions. Relation B is not a function.

Three relations are shown below: 

Using Desmos and the vertical line test, determine whether each relation qualifies as a function or not a function: 

• Relation A is a function. Relation B and C are not functions.

• Relation A and B are functions. Relation C is not a function.

• Relation B and C are functions. Relation A is not a function.

• Relation A and C are functions. Relation B is not a function.

Three relations are shown below: 

Using Desmos and the vertical line test, determine whether each relation qualifies as a function or not a function: 

• Relation A is a function. Relation B and C are not functions.

• Relation A and B are functions. Relation C is not a function.

• Relation B and C are functions. Relation A is not a function.

• Relation A and C are functions. Relation B is not a function.

A set of points of a relation is shown below with a missing value, k . 

Which of the following values of k would make the relation a function?

• k=8

• k=3

• k=7

• k=-5

Tags

CCSS.8.F.A.1

A set of points with a missing value, k , is shown:

Which of the following two values of k would result in the relation qualifying as not a function?

• k=4

• k=9

• k=-7

• k=2

• k=3

Tags

CCSS.8.F.A.1

A set of points with a missing value, q , is shown:

Which of the following two values of q would result in the relation qualifying as a function?

• q=5

• q=60

• q=35

• q=15

• q=-3

Tags

CCSS.8.F.A.1