Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Algebra 2 question? (About graphing & domains)?
Okay, it has to do with grahping and stating the domain.
For example: y=√x + 3 (Graph)
I know how to graph it, I just don't know how to write out the domain. I know the domain is 0 , infinity, but I'm confused about the parenthesis:
is it (0,infinity] or [0,infinity), or (0,infinity) ??? My teacher completely confused me. All I know is that the [ ] are used when you don't count the number, and the ( ) is when you don't... Or the other way around... Thanks for the help :)
1 Answer
- 1 decade ago
The domain would be all of the x-values.
The range would be all of the y-values.
I assume you are talking about interval notation when you are speaking about parenthesis. [infinity,7), (2,6), (0,5] these are examples of interval notation.
Once you graph it this part should be easier. I think that the domain would be all real numbers and the range would be [0,infinity). Please double check though because it has been a while since I did this type of problem. Hope this helps!
Source(s): Experience.