Function Identification Algebra

Is this is a function or not a function?

• Function

• Not a Function

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function

• Not a Function

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

Which of these tables represent a function?

• A

• B

• C

• D

Tags

CCSS.8.F.A.1

This relation ​ (a)   a function.

• is

• is not

Tags

CCSS.8.F.A.1

This relation ​ (a)   ​ a function.

• is not

• is

Tags

CCSS.8.F.A.1

This relation ​ (a)   a function.

• is

• is not

Tags

CCSS.8.F.A.1

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

• { 3, 1, -4, }

• { 2, -2, -5 }

• Undefined

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

The set of ordered pairs that is a function is (a)  

• {(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

Tags

CCSS.8.F.A.1

• It is not a function because it does not pass the vertical line test.

• It is a function because for each x-value, there is exactly one y-value.

• It is not a function because it represents a quadratic equation.

• It is a function because it represents a circle.