Question

For each graph choose the appropriate domain and range.

Answer 1

Domain: Set of all real numbers (this is because you can plug in any number for x and it will land somewhere on the graph)


Range: The set {y | y <= -2 or y >= 2}. This is the entire set of real numbers but we're excluding the interval (-2,2)

Answer 2

Does that answer your question? Or is there more?

Answer 3

{y|0<y<-2or 2<y <0} would that be the correct answer?

Answer 4

No because 0 < y < -2 makes no sense whatsoever...there is no such number that is both greater than 0 and less than -2 at the same time. Basically, there's no number that's both positive and negative at the same time (ignore 0)

Answer 5

What are the other choices?

Answer 6

It's the last choice since that's another way of writing {y | y <= -2 or y >=2}

Answer 7

\[\Large \{y | -\infty < y \le -2 \ \text{ or } \ 2 \le y < \infty\}\]