Finite Math Examples

Determine if Injective (One to One) (-5,9) , (3,9)
,
Step 1
Since for each value of there is one and only one value of , the given relation is a function.
The relation is a function.
Step 2
Since for each value of there is more than one value, the given relation is not a one-to-one function.
This relation is not a one-to-one function.