+0  
 
-1
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 Nov 20, 2018
 #1
avatar+6097 
+1

a function maps every element of it's domain to a single value in it's range.

 

the only completion of the first table is so that f is not a function is

 

-1 anything but -8
-1 8
6 anything

 

Any other completion of this table will ensure f is a function.

 

For the second part.

 

-1 anything but -8
-1 -8
6 anything

 

is not a function because -1 is mapped to two different values

 Nov 21, 2018

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