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Math Help - inequality

  1. #1
    Faz
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    inequality

    Give a negative value of p which satisfies the inequality p>=-5
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  2. #2
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    Quote Originally Posted by Faz View Post
    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)
    Attached Thumbnails Attached Thumbnails inequality-unglg_zahlenstrahl.png  
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  3. #3
    Faz
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    inequality

    that means any value from -4 to -1 would be the answer....?
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    Yes any value from -4 to -1 would be he answer.
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  5. #5
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    Would it not be -5 to -1, because it says greater then or equal to?
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  6. #6
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    Quote Originally Posted by Zabaf View Post
    Would it not be -5 to -1, because it says greater then or equal to?



    yes -5 to -1 i didnt se the = sorry
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  7. #7
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    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.
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  8. #8
    Faz
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    inequality

    it should be up to -1 as the question asked for negartive value.....thks guys.
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  9. #9
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    Quote Originally Posted by Faz View Post
    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.
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  10. #10
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    Here is the right answer to your question.

    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
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  11. #11
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    Quote Originally Posted by Alienis Back View Post
    Here is the right answer to your question.

    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
    ..
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