Question

MEDAL PLUS FAN!!!

Determine which relation is a function.

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

Answer 1

Hey Abby. :D
To find a relation that isn't a function, try finding one where the range never repeats.

Answer 2

Function: each member of the domain is mapped to the range once.

Answer 3

Sorry, my mistake. Where the DOMAIN never repeats.

Answer 4

Ok, lol

Answer 5

I.E. {(1,1), (2,1)} is a function
{(1,1), (1,2)} is not

Answer 6

mhmm. So im thinking A.

Answer 7

B. {(–3, 3), (–2, 3), (–1, 1), (0, 4), (0, 1)}
B, for example, is not a function.
0 is mapped twice.

Answer 8

Yeah I see that.

Answer 9

A is correct. :)
{(–3, 2), (–2, 3), (–1, 2), (0, 4), (1, 1)}
The domain consists of entirely different values.

Answer 10

Each member of the domain is mapped once and only once to the range.

Answer 11

Yay! I got it right. thnx! :D I understand clearly now.

Answer 12

Good. :3

Answer 13

@malcolmmcswain can I have medal please? :3 lol

Answer 14

-.-