Question

Tell whether the following is a function. If not explain why.
{(-3, 5), (0, 7), (0, 6), (4, 1)}.

It's not a function, right? I don't see any possible pattern.

Answer 1

if x values repeats then relation is not a function

Answer 2

and yes right

Answer 3

it's not a function because we have 0 twice in the domain.

Answer 4

[ -3 0 0 4]
uh oh . I see 0 twice... not a function :)

Answer 5

To be a function each x value must have a unique y value, so it isnt a function because x=0 has 2 y-values

Answer 6

Alright thank you! I didn't think that it was, and I forgot the rule about x values not being repeated. And it's getting late and I've been doing math all day, excuses excuses... Thank you @UsukiDoll for putting it into terms that will work in the assignment also.

Just curious I want to make sure, it doesn't matter if y values repeat, right?

Answer 7

no just ignore the y values

Answer 8

the x values matter more if we're given a problem like this.

Answer 9

Alright thank you all!