Question

Which of the following ordered pairs could be in a relation that has a range of {2, 4, 5}? A. (2, 3), (4, 1), (5, 2) B. (5, 3), (5, 4), (5, 2) C. (4, 3), (5, 5), (5, 2) D. (3, 4), (5, 5), (5, 2)

Answer 1

i got this

Answer 2

k so what is the range?

Answer 3

i cant help you unless you help me.

Answer 4

well first off domain is X and range is Y

Answer 5

so for a the domain would be 2,4,5 BUT they want the range

Answer 6

basically the domain is all the x's in the order pair ordered from least to greatest. now the range is the same thing BUT for Y's only.

Answer 7

there is no order

Answer 8

So what you'll need to do is find one row that has the 3 numbers you have in the spot for Y.

Answer 9

doesnt need to be in order...

Answer 10

it does! but not atm

Answer 11

nope {1,2,3}={3,2,1}

Answer 12

is it?

Answer 13

it doesn't I promise.

domains are sets and there is no order

Answer 14

because there might not be a relation

{car,dog,house}

Answer 15

how would you order that?

Answer 16

nouns and numbers arent the same.

Answer 17

google set

Answer 18

numbers have least to greatest.

Answer 19

no need to argue, it is what it is

Answer 20

... and doesn't have to have all members of {2,4,5}, BUT canNOT have anything outside of {2,4,5} in the "y-spot".

Answer 21

yep^

Answer 22

also we don't repeat elements

{2,2,3,4} makes no sense...

Answer 23

has to be {2,3,4}

Answer 24

none of this is my opinion, its true by definition

Answer 25

again {2,3,4}={4,3,2}

Answer 26

@saidieblake are you there?
Looks like the guests are taking over without the host!

Answer 27

@sadieblake hello?

Answer 28

@chucho78
{2,3,4}\(\equiv\) {4,2,3} as @zzr0ck3r mentioned.

Answer 29

http://www.mathsisfun.com/sets/sets-introduction.html

scroll down to where it says equality

Answer 30

(facepalm) i think i've been expressing myself wrong.

Answer 31

you're right my apologies.