Will Fan And Medal :)

Determine which relation is a function.

A.
{(–3, 2), (–2, 3), (–1, 1), (0, 4), (0, 1)}

B.
{(–3, 2), (–1, 3), (–1, 2), (0, 4), (1, 1)}

C.
{(–3, 3), (–2, 3), (–1, 1), (0, 4), (0, 1)}

D.
{(–3, 2), (–2, 3), (–1, 2), (0, 4), (1, 1)}

Question

Will Fan And Medal :)

Determine which relation is a function.	
 
 A.
{(–3, 2), (–2, 3), (–1, 1), (0, 4), (0, 1)}
 
 B.
{(–3, 2), (–1, 3), (–1, 2), (0, 4), (1, 1)}
 
 C.
{(–3, 3), (–2, 3), (–1, 1), (0, 4), (0, 1)}
 
 D.
{(–3, 2), (–2, 3), (–1, 2), (0, 4), (1, 1)}

kamibug · Answer

A function is a special relationship where each input has a single output. So which of these has only one unique y-value per x-value? :)

welshfella · Answer

look at the x-values ( that is the first values) in each pair of numbers.
If there are 2 or more pairs with the same x-value the relation is not a function.

anonymous · Answer

Ohhh