# inequality

• Nov 17th 2008, 12:52 AM
Faz
inequality
Give a negative value of p which satisfies the inequality p>=-5
• Nov 17th 2008, 01:20 AM
earboth
Quote:

Originally Posted by Faz
Give a negative value of p which satisfies the inequality p>=-5

Use the attached number line to find an appropriate value.

(Btw, it would help us very much if you could describe which difficulties you have to answer this question)
• Nov 17th 2008, 02:26 AM
Faz
inequality
that means any value from -4 to -1 would be the answer....?
• Nov 17th 2008, 03:21 AM
Brent
Yes any value from -4 to -1 would be he answer.
• Nov 17th 2008, 04:22 AM
Zabaf
Would it not be -5 to -1, because it says greater then or equal to?
• Nov 17th 2008, 05:43 AM
Brent
Quote:

Originally Posted by Zabaf
Would it not be -5 to -1, because it says greater then or equal to?

yes -5 to -1 i didnt se the = sorry
• Nov 17th 2008, 07:45 AM
HallsofIvy
Why stop at -1? Nothing is said about p being an integer. Any $0> x\ge -5$ satisfies "p is a negative number such that $p\ge -5$.
• Nov 18th 2008, 04:35 PM
Faz
inequality
it should be up to -1 as the question asked for negartive value.....thks guys.
• Nov 18th 2008, 09:38 PM
earboth
Quote:

Originally Posted by Faz
it should be up to -1 as the question asked for negartive value.....thks guys.

In the original problem there aren't any restrictions for p. Therefore p must be in the interval fom -5 to zero as HallsofIvy has already posted.

To be exact: $p \in [-5, 0)$ because -0.3 or -0.03 or -0.000003 are marvelously negative numbers.
• Nov 19th 2008, 03:05 AM
Alienis Back

Be careful, your interval finishes with 0 as beyond they are positive...and you're looking for a negative.

Here are included all numbers between -5 and 0 (included -5)

Notice that you can get infinitely close to a number without reaching it. How?

Simply:

-4.99999...999...(and you'll never reach -5. In this case we do though)

-0.00000...000...1 (and you can spend the rest of your life placing zeros in between and never reach to 0)

Best regards
• Nov 19th 2008, 03:10 AM
mr fantastic
Quote:

Originally Posted by Alienis Back

Be careful, your interval finishes with 0 as beyond they are positive...and you're looking for a negative.

Here are included all numbers between -5 and 0 (included -5)

Notice that you can get infinitely close to a number without reaching it. How? Mr F says: Actually the correct word to use here is infinitesimally.

Simply:

-4.99999...999...(and you'll never reach -5. In this case we do though)

-0.00000...000...1 (and you can spend the rest of your life placing zeros in between and never reach to 0)

Best regards

..