Question

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

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

Answer 1

@TheSmartOne

Answer 2

pick the one with no repeats in the first coordinate
for example not
{(–3, 2), (–2, 3), (–1, 1), (0, 4), (0, 1)}
because the 0 repeats

Answer 3

@satellite73 is right

Answer 4

So A!
Thankiez Satellite!
and Cardinal

Answer 5

oh no dear, not A

Answer 6

i said NO repeats, A has a repeated 0

Answer 7

Riiiight.

Answer 8

find the one where all the first numbers are different

Answer 9

repeats means it is not functions

Answer 10

C?

Answer 11

yes, it is always C

Answer 12

graphing may help

https://www.youtube.com/watch?v=Eg24XYh6Dbs

if you plot all the points, and the relation fails the vertical line test, then it's not a function

Answer 13

yes

Answer 14

Yay, thankz! :)
ღ

Answer 15

I have a lot more! lol...
But I at least need help with a few...

Answer 16

make another post (: