The domain of the following relation: R {(3, -2), (1, 2), (-1, -4), (-1, 2)} is

{-1, 1, 3}

{-1, -1, 1, 3}

{-4, -2, 2, 2}

{-4, -2, 2}

Question

The domain of the following relation: R {(3, -2), (1, 2), (-1, -4), (-1, 2)} is

 {-1, 1, 3}

 {-1, -1, 1, 3}

 {-4, -2, 2, 2}

 {-4, -2, 2}

anonymous · Answer

domain means the values which abcissa  can take

anonymous · Answer

what?

anonymous · Answer

are the first part of R within  {-1, 1, 3}

anonymous · Answer

You mind explaining this to me, I don't understand any of it.

anonymous · Answer

If this is multiple choice, the answer is the fourth one down.

anonymous · Answer

I'm sorry I read the question wrong, it is the first one.

anonymous · Answer

Basically the domain is x and  the range is y, so the domain is the first number, and the range is the second one. Listed in order the domain is -1, 1, and 3. you only have to list each value once.

anonymous · Answer

yup
in  R {(3, -2), (1, 2), (-1, -4), (-1, 2)} 
domain is  {3,1,-1,-1} but we won't write -1 twice in the set 
so domain is  {3,1,-1}

anonymous · Answer

@lagear777 So basically it is a collection of the x numbers (domain) but each number only once?

anonymous · Answer

I think that made sense

anonymous · Answer

Yes that's basically it lol

anonymous · Answer

kk thanks man