Functions from Mappings

Does this represent a function?

• Yes

• No

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 paired with it.

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

The unction graphed here consists of a single point.

What single point is in the inverse function?

• (5,5)

• (3,2)

• (2,3)

• (-5,-5)

are these inverse functions?

• no

• yes

• no way to tell

Is this set of ordered pairs a function or relation? 

• Function

• Relation

Is this mapping a function or not a function? 

• Function

• Not a Function

What ordered pairs make up the inverse of f?

• (3,1)(4,2)(8,6)

• (-3,-1)(-4,-2)(-8,-6)

• (1,3)(2,4)(6,8)

• (-1,-3)(-2,-4)(-6,-8)

Does this represent Y as a function of X?

• Yes

• No

The mapping represents a ___________.

• Function

• Relation

Is this table a function or not a function? 

• Function

• Not a Function