Help Please Determine which relation is a function.

A.

{(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)}

B.

{(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)}

C.

{(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)}

D.

{(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}

Question

Help Please Determine which relation is a function.  
 
 

 
 

  

  A. 
 
{(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)}
   
   

 
 

  

  B. 
 
{(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)}
   
   

 
 

  

  C. 
 
{(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)}
   
   

 
 

  

  D. 
 
{(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}

anonymous · Answer

hhmmm nothing like a bit of editing
pick the one with no repeats in the first coordinates

dtan5457 · Answer

@FateRocks8D 

Did you get it?

anonymous · Answer

I can elimant D. and B

anonymous · Answer

Probably c?

dtan5457 · Answer

It is C. Say it with confidence :) 

All x coordinates are different.

anonymous · Answer

Thank u :)