Functions Cool Down

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

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

Is this graph a function or not a function? 

• Function
• Not a Function

Does the table represent a function?

• Yes, there  is a repeated x-value. 
• No, there aren't any repeated y-values. 
• Yes, there are repeated y-values. 
• No, there is a repeated x-value. 

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.8.F.A.1

y = 2x + 3
What is y when
x = 2?

• 6
• 7
• 4
• 10

Tags

CCSS.HSF.IF.A.2

y = 3x - 2
What is y when 
x = 3?

• 7
• 3
• 9
• 4

Tags

CCSS.HSF.IF.A.2

y = 10x
What is y when 
x = 3?

• 13
• 3
• 20
• 30

Tags

CCSS.6.EE.C.9