Posted by
katie on
.
I need to write an interval notion for
9<x<14 = how do I write this?

Algebra 116 A 
Anonymous,
(9,14)

Algebra 116 A 
katie,
I thought I needed Brackets or such

Algebra 116 A 
Steve,
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