anonymous
  • anonymous
Find the domain and range. Use inequality and interval notation.
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
|dw:1441672271947:dw|
anonymous
  • anonymous
All you need to do is list the values in {} brackets. Y is domain, X is range. So, for example, Domain {1,2,3,4,5} Range {6,7,8,9,10} That's for interval notation, though. I cannot remember how to do inequalities, sorry!
anonymous
  • anonymous
D: {0,∞ } R: {0,-∞ }

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anonymous
  • anonymous
Isn't inequality like, Example) -∞
anonymous
  • anonymous
Yes, I believe so =)
anonymous
  • anonymous
How would i then find inequality for the graph?
mathmate
  • mathmate
The diagram does not provide all the information necessary. It is preferable to post an image of the original question. In the mean time, 1. Does the function start from x=0, or x>0? 2. Is the function real or is it an integer function?
anonymous
  • anonymous
1. x=0 2. real function
mathmate
  • mathmate
The interval notation provided by @CollateralDamage is close, but not exact. We need to use (, [, ), or ] for the limits. [ includes the value, and ( excludes the value. Since it starts from zero to infinity, we write domain = [0,\(\infty\)) while excluding infinity (not a defined value). Range would be similar, [0,-\(\infty\)). You can try the inequality notation, using < for less than, \(\le\) for less than or equal to. something like 5\(\le\)x<100, but substitute the correct values used in the interval notation.
anonymous
  • anonymous
D: 0
mathmate
  • mathmate
You're excluding the point (0,0) in both cases, otherwise it looks ok. By the way, I need to make the correction for range \((-\infty, 0]\).
anonymous
  • anonymous
Thanks for the help @mathmate :D
mathmate
  • mathmate
You're welcome. :)

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