WILL MEDAL!!

Which relation is a function?

A. (–8, –3), (–1, –5), (–8, –2)

B. (1, –3), (5, –3), (–3, 7)

C. (–3, 0), (5, 9), (–3, 2)

D. (1, 2), (1, 1), (0, 1)

Question

WILL MEDAL!!

Which relation is a function? 	
	
 
A. (–8, –3), (–1, –5), (–8, –2)
	
 
B. (1, –3), (5, –3), (–3, 7)
	
 
C. (–3, 0), (5, 9), (–3, 2)
	
 
D. (1, 2), (1, 1), (0, 1)

21younga · Answer

Please help!

jjcoolja12 · Answer

i think d

retireed · Answer

I am going to try and teach you by going one at a time.  Is that okay?


Is is not A, do you know why?

21younga · Answer

Yeah that's okay.


because the relations don't match up?

retireed · Answer

|dw:1458658757389:dw|

21younga · Answer

okay

retireed · Answer

A independent variable can not have two different dependent correlations

21younga · Answer

okay, it's making more sense now.

retireed · Answer

Is not D

      D. (1, 2), (1, 1), (0, 1)    Do you see why?

21younga · Answer

yes

retireed · Answer

It is not C)

     C. (–3, 0), (5, 9), (–3, 2)         For the same reason

21younga · Answer

yes, thanks so, much for helping!! But I think I've got it now :). I'll always ask more question if I don't get it. Thanks :)

retireed · Answer

So it must be B)


B. (1, –3), (5, –3), (–3, 7)      Each X has a different y value

retireed · Answer

Your very welcomed.