Function vs Not a Function

Is this mapping a function and how can you tell?

• Yes its a function cause all the numbers have lines
• No it's not a function because there a 5 in both ovals
• No it's not a function because the x value 5 has y values of  2 & 9
• No it's not a function because the y value 5 has x values of  2 & 9

Tags

CCSS.8.F.A.1

Is this table a function and how can you tell?

• Yes its a function because there are not variables for missing numbers
• No it's not a function because the y value 4 repeated
• No it isn't a function because the x value 2 is repeated
• No it's not a function because the x value 5 has y values of  10 & 12

Tags

CCSS.8.F.A.1

How do you administer a vertical line test.

• You don't only doctor's are allowed to do those
• Draw lines straight across your graph and see if any hit the graph more than once
• Draw lines straight down your graph and see if any hit the graph more than once
• Check to see if the graph is a vertical line( straight up)

Tags

CCSS.HSA.REI.D.11

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

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

• Function
• Not a Function

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.A.2

CCSS.HSF.IF.C.7

CCSS.HSF.IF.B.5

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSA.REI.D.10

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1