Question

need help asap will fan & medal.

Determine which relation is a function.


A.


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


B.


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


C.


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


D.


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

Answer 1

LOOK FUNCTION IS DEFINED AS
HAVING ONE OUTPUT

Answer 2

(x,y)
y should not be repeated

Answer 3

if you have duplicate 'x' values like the 0's in the first choice its not a function.

Answer 4

for example
LOOK AT OPTION"a"
{(–3, 2), (–2, 3), (–1, 1), (0, 4), (0, 1)}
1 as y is repeated two times with -1 and 0

Answer 5

i see.

Answer 6

the y can be repeated in a function - its the x values which cannot.

Answer 7

the first choice is not a function because of the (0, 4) and (0, 1)