# Interval Notation

• Sep 3rd 2008, 12:29 PM
xJenniferx
Interval Notation
I have a question that wants me to show in in interval notation but don't get how to show it.

Question:
p is less than 9 but no less than -1

if p is less than 9 then it should be
p < 9

then it says but no less than -1, this is where it got me thinking where do i put it?
this is what i have

-1 > p < 9

The problem is that both arrows are pointing at each other and wonder is that correct or is it wrong please help thanks.
• Sep 3rd 2008, 01:04 PM
topsquark
Quote:

Originally Posted by xJenniferx
I have a question that wants me to show in in interval notation but don't get how to show it.

Question:
p is less than 9 but no less than -1

if p is less than 9 then it should be
p < 9

then it says but no less than -1, this is where it got me thinking where do i put it?
this is what i have

-1 > p < 9

The problem is that both arrows are pointing at each other and wonder is that correct or is it wrong please help thanks.

Don't let the negative sign confuse you. If p were to be no less than, say, 1 then you'd have
$1 \leq p < 9$

So just put a -1 where you have the 1:
$-1 \leq p < 9$

-Dan