Question

Part 1: Create a relation of five ordered pairs that is a function. In complete sentences explain why this relation is a function.
Part 2: Create a relation of five ordered pairs that is not a function. In complete sentences explain why this relation is not a function.

Answer 1

make up any 5 ordered pairs you like, just don't repeat the first numbers
anything at all

Answer 2

for part 1
then for part 2 make up another 5 ordered pairs, only this time DO repeat one or more of the first numbers
this will not be a function precisely because the first numbers repeat

Answer 3

gabby do u do flvs

Answer 4

that is all there is to this

Answer 5

(2, -1) , (4,6) , (1,0) , (8,10) , (3,5)

That would be for part 1 or part 2???

Answer 6

@briszabo no, i used to

Answer 7

@Gabylovesyou yes that would work for part 1

Answer 8

but i might get it wrong cuz its exactly the one u put (yes im in FLVS) lol was scared to say it

Answer 9

at the risk of repeating myself, the example is right, the reasoning is wrong, so don't use it

Answer 10

@satellite73 what is the reason that it is a function??

Answer 11

(2, -1) , (4,6) , (1,0) , (8,10) , (3,5) would work for part 1, because the numbers

\(\{2,4,1,8,3\}\) aer all different

Answer 12

i.e. they do not repeat
that is your only concern, whether the first numbers repeat or do not repeat

Answer 13

so i put This relation is a function because they do not repeat

Answer 14

if they do not repeat, it is a function
if they do repeat, it is not a function

Answer 15

be more precise
the "they" is the domain elements, i.e. the first numbers

Answer 16

ohh yea i am im taking algebra so i can make up my grade for algrebra i have ms.campbell and what i said is right the math teacher wants it to be specific so u would say that every y value has only one x value

Answer 17

ok...... Can you give me part 2 @satellite73

Answer 18

yea

Answer 19

This relation is a function because they do not repeat

maybe change to
This relation is a function because the first numbers do not repeat

or
This relation is a function because the domain elements are all different.

something like that

Answer 20

the answers i actually turned into my teacher i got from a website

Answer 21

save me lord

Answer 22

{(-1,7) , (1,-7),(1, 7),(33, 7),(32, 7)} its not a function because the y value has more then one x value each.

Answer 23

@satellite73 can i use that ^^^^^^ for part 2??

Answer 24

@Gabylovesyou make up an example where the first numbers do repeat
it will not be a function precisely because of that reason

no, that is wrong
i repeat, the example is right (it is not a function) the reasoning is INCORRECT

Answer 25

what reasoning can i put for that function @satellite73

Answer 26

by which i mean this line
its not a function because the y value has more then one x value each.
is totally wrong

Answer 27

@satellite73 what do i put then?

Answer 28

i give up i got it right for a reason apparently

Answer 29

@Gabylovesyou make up your own example
anything
just make sure the at least one of the first number repeats
the reason the relation will not be a function is precisely because the first number repeats

Answer 30

mmmmmmmm can you make one for me??

Answer 31

@briszabo you are being cheated by bad math instructors, and you should be angry about it.

Answer 32

ok sure i will give you an example, but then you should make up your own

Answer 33

-_- awwww

Answer 34

lol

Answer 35

(4,-2), (1,-1) (0,0), (1,1), (4,2)

Answer 36

why isn't it a function? because there is a repetition in the first numbers.
the numbers 4 and 1 both appear twice in the first coordinate

now make up your own example

Answer 37

ok...

Answer 38

-2, -1
-1,0
0,3
1,0
1,15

Answer 39

@satellite73

Answer 40

good example
not a function because the 1 in the first coordinate repeats

Answer 41

k thank you soo much!