Question

What is the domain of the relation (8, –2), (4, –2), (–3, 2), (–5, –3)?




A.

{8, 4, 3, –5}


B.

{–8, –4, 3, 5}


C.

{–5, –3, 4, 8}


D.

{–3, –2, 2}

Answer 1

Your domain, by definiton, is the set of all the x coordiantes
So say you had \[(a,b) (c,d)\] The domains would be a and c, do you understand?

Answer 2

no

Answer 3

Ok, if you have a relation (a set of cooridantes, i.e., (1,2)(2,3)(3,4)) the domains are all the values you put into fuction to get a value out

Think of the domains as the input, the ingredients for a recipe, after you perform the speified opertion on it, you get a aoter number out, the range, which is like the cake you make with the ingrdients (the domain) so in this case with (1,2)(2,3)(3,4) the "ingredients" are 1, 2, and 3

When you perform the operation (add 1) you get the second et of numbers, "the cakes" which are 2, 3, and 4

So when asked for the domain in this case of (1,2)(2,3)(3,4) you would just list the inputs, 1, 2, and 3.

Just apply this same logic to your problem