Question

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Answer 1

Well, the domain is the set of all possible values for x. If you look, you can see that x can take on any value except for 0, so your domain would be (-Infinity,0) Union (0,Infinity).

To find the range, you do the same thing.

Answer 2

\[(-\infty,0)\cup(0,\infty)\]is the same as \[{x|x \neq 0}\]

Answer 3

Well, when you look at the graph, do you see any values that y cannot be?

Answer 4

Well, no...

If you look y is 0 at about x=-2 and x=2.

Answer 5

Yes