Posted by **katie ** on Friday, September 23, 2011 at 11:31am.

I need to write an interval notion for

9<x<14 = how do I write this?

- Algebra 116 A -
**Anonymous**, Friday, September 23, 2011 at 11:34am
(9,14)

- Algebra 116 A -
**katie **, Friday, September 23, 2011 at 11:36am
I thought I needed Brackets or such

- Algebra 116 A -
**Steve**, Friday, September 23, 2011 at 5:28pm
Brackets are used for included endpoints.

(9,14) for 9 < x < 14

[9,14) for 9 <= x < 14

(9,14] for 9 < x <= 14

[9,14] for 9 <= x <= 14

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