Which of the following relations is a function?
A. (7, 1), (-3, 4), (4, 1), (7, 2)

B. (4, 4), (-3, 2), (7, 1), (-7, 2)

C. (4, 4), (-3, 6), (4, 3), (-7, 2)

D. (4, 0), (-3, 3), (7, 1), (-3, 5)

I think it's B , but I'm not completely sure ..

Question

Which of the following relations is a function?
	A.  	(7, 1), (-3, 4), (4, 1), (7, 2)

	B.  	(4, 4), (-3, 2), (7, 1), (-7, 2)

	C.  	(4, 4), (-3, 6), (4, 3), (-7, 2)

	D.  	(4, 0), (-3, 3), (7, 1), (-3, 5)

I think it's B , but I'm not completely sure ..

anonymous · Answer

Your Right!

anonymous · Answer

numbers in the domain (x) can go to the same number in the range (y) but (x) can't be doubled

perl · Answer

if you see a relation where you have x value repeats, like
(3,2) (3,5)  , that is not a function