Question

what is the relation {(3,5),(-4,5),(-5,0),(1,1),)4,0)} a function?explain. Please help me.

Answer 1

Hi dear please help me😭

Answer 2

"Relation: A relation is simply a set of ordered pairs."

Answer 3

Ok

Answer 4

@zepdrix can you explain it to them ._. im kinda fuzzy on this stuff ;-;

Answer 5

This are the sets of coordinates and I have to know weather they are function or not?

Answer 6

So you have a relation :)

Let me give you an example of a relation that is `not a function`:\[\large\rm \{~(2,3),~(2,4),~(3,5)~\}\]See how the number 2 is being mapped to the 3, but also to the 4?

In order for a relation to be a function,
the first number needs to go to a `single value`,
it can't go to multiple different values.

Answer 7

So for your problem:\[\large\rm \{~(3,5),~(-4,5),~(-5,0),~(1,1),~(4,0)~\}\]Any ideas? :)

Do we have the first number in the coordinate pair repeating at all?

Answer 8

Ok

Answer 9

Nop

Answer 10

in a function, no x value repeats

Answer 11

Nope!
So it looks like we have no problems then!

Function! :)

Answer 12

Ya, that is a simpler way to say it ^
I like that.

Answer 13

What reason should I give for this then?

Answer 14

Hmm

Answer 15

That mean it is a function right?

Answer 16

yeah

Answer 17

Hmm, I'm not sure what type of language you're familiar with.

The elements from our first components of our ordered pairs
are all paired with a `single` element in the second component.

We don't have anything from the first component repeating.

Something like that maybe? :\ mm

Answer 18

Thank you Zepdrix,MEO and pooka every body for helping.

Answer 19

Ok lolthanks anyway

Answer 20

np :)

Answer 21

@MEO how to explain this?