Question

Is this a function?

Answer 1

do any of the x coordinates repeat?

Answer 2

A function is a type of relationship in which for every input, there is an out. The x coordinates are normally the input, and y is the output.

So if each value of the first components of the ordered pairs is associated with only one of the second component, it is a function.

if you have a (20,23) and (20, -23), it is not a function because one value of x (20) is linked with two of y.

Answer 3

@jim_thompson5910 @osanseviero So this IS a function?

Answer 4

Based on the things we told you before, what do you think? (it is better if you try it for yourself :) )

Answer 5

Don't fish answers :P

Answer 6

@osanseviero I think it is a function, I'm just trying to figure out if it is one for sure

Answer 7

You are right. Be sure to understand the concept of a function, that is the really important thing.

Answer 8

do any of the x coordinates repeat?

if yes, and the y coordinates for those repeated x values are different, then you do NOT have a function

if no, then you have a function

Answer 9

thanks @jim_thompson5910 @osanseviero

Answer 10

np

Answer 11

:) you are welcome