# Interval Notation

• Apr 14th 2012, 08:40 PM
SSmith
Interval Notation
Hi,

Just wanting some clarification on how, if possible, I am able to represent the inequality: -2.5 < x > 1
using interval notation such as: x ∈ [1,3) for the interval 1 ≤ x < 3
• Apr 14th 2012, 08:52 PM
MathoMan
Re: Interval Notation
$-2.5 < x > 1$ says that $x>-2.5$ AND $x>1$. So $x\in \langle -2.5, \infty\rangle \cap \langle 1, \infty\rangle \Rightarrow x\in \langle 1, \infty\rangle$