Making Connections with Functions

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Does the mapping of these points represent a function?

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Which graph is a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Proportional linear situations are functions.

• Always True

• Sometimes True

• Never True

Tags

CCSS.8.F.A.3

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

Tags

CCSS.8.F.A.1

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

Tags

CCSS.8.F.A.1

Proportional situations are functions.

• Always True

• Sometimes True

• Never True

Tags

CCSS.8.EE.B.5

• I think the correct answer is A.

• I think the correct answer is B.

• I think the correct answer is C.

• I think the correct answer is D.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• I think the correct answer is A.

• I think the correct answer is B.

• I think the correct answer is C.

• I think the correct answer is D.

• I think the correct answer is A.

• I think the correct answer is B.

• I think the correct answer is C.

• I think the correct answer is D.

Tags

CCSS.6.EE.C.9