is this correct? Find the domain of the relation:
{(–5, –4), (–2, –1), (1, 0), (2, 2), (4, 3)}
a. {–5, –4, –2, –1, 0, 1, 2, 3, 4}
b. {–5, –2, 1, 2, 4}
c. {–4, –1, 0, 2, 3} my choice
d. {–4, –1, 2, 3}

Question

is this correct? Find the domain of the relation:
 {(–5, –4), (–2, –1), (1, 0), (2, 2), (4, 3)}
a. {–5, –4, –2, –1, 0, 1, 2, 3, 4}
b. {–5, –2, 1, 2, 4} 
c. {–4, –1, 0, 2, 3} my choice
d. {–4, –1, 2, 3}

myininaya · Answer

Domain just list the x's but do not repeat them if they occur more than once.

anonymous · Answer

I think it is c or d

myininaya · Answer

Do you know what the x values are in your set?

myininaya · Answer

the first number in the ordered pairs is x
the second number in the ordered pairs is y
Please list the x's to have your domain.

sierra_grey · Answer

im not sure, to be honest

myininaya · Answer

(x,y)<---these are called ordered pairs 

Just list all the x's (AKA just list the first number in every ( _ , _ ) )

myininaya · Answer

Can you tell me what x is in the ordered pair (4,9)?

sierra_grey · Answer

4?

myininaya · Answer

Ok now look in the following set:
{(–5, –4), (–2, –1), (1, 0), (2, 2), (4, 3)} and just list all the x values of each ( _ ,_ )

myininaya · Answer

You can do this. You are just listing every 1st number in each ( _ , _ )

sierra_grey · Answer

-5, -2, 1, 2, 4? which make the correct answer B, right?

myininaya · Answer

yep

myininaya · Answer

and your choice would actually be the range (your initial choice)

sierra_grey · Answer

ohh, okay. thanks :) so x is domain and y is range?

myininaya · Answer

yep