Identifying Functions

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

Tags

CCSS.8.F.A.1

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

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.

Tags

CCSS.8.F.A.1

Is this relation a function?

• Yes
• No

Tags

CCSS.8.F.A.1

• Yes
• No

Tags

CCSS.8.F.A.1

Is this is a function or not a function?

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is this a function or not a function?

• Function
• Not a Function

Does the mapping of these points represent a function?

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Which set of values is a function?

• (6,-5) (7, -3) (8, -1) (9, 1)

• (3,4) (4,-3) (7,4) (3, 8)

• (9,5) (10,5) (9,-5) (10,-5)

Tags

CCSS.8.F.A.1