What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 6)}

A.
{1, 2, 3, 4}

B.
{2, 4}

C.
{1, 2, 3, 4, 6}

D.
{2, 4, 6}

Question

What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 6)}
  
 
 

 

 
  

  A. 
  {1, 2, 3, 4}   
   

 

 
  

  B. 
  {2, 4}   
   

 

 
  

  C. 
  {1, 2, 3, 4, 6}   
   

 

 
  

  D. 
  {2, 4, 6}

anonymous · Answer

I believe it's A.

mathmale · Answer

You are given a number of points with x and y-coordinates, and know (or should know) that the 2nd coordinate in each point (x,y) represents the function value.

1) List all the distinct y-coordinates you see in this set of points.  Do that now, plese.
@eflatt13:  Please involve the other person in finding his or her own solutions.  One of the highest honors you can earn on OpenStudy is recognition for your ability to teach, to guide, to inspire, with that outcome.  Please do not post answers, especially if you "believe it's this or that," but don't know for sure.  Thank you.

anonymous · Answer

2,4,2, and 6. So since yu only count the 1 2, it's 2, 4, ad 6. D. thanks