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)

I pikced B and its prob wrong right @esshotwired

Question

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)

I pikced B and its prob wrong right @esshotwired

esshotwired · Answer

hmmm *thinks* what is a function? -brings back old math memories- yuck. ok hang on. research time

anonymous · Answer

xD

esshotwired · Answer

OHHH i think i got it! wait... let me read the answer choices first

esshotwired · Answer

AHHH OMG LINN! i was right :3 ok so each x-value has to be different. There cannot be something like (1,2) (1,3) but there can be something like (1,2) (3,2). So which one of these does not have more than one of the same x-value?

anonymous · Answer

I think its B but it it possibly D? becase of (1,2)

esshotwired · Answer

It's B. D has 1 used for the x-value twice so it's incorrect

anonymous · Answer

i have 2  more XD

esshotwired · Answer

okie dokie smokie