Results 1 to 3 of 3

Math Help - Finding equation from inequality

  1. #1
    Member
    Joined
    Nov 2008
    Posts
    184

    Question Finding equation from inequality

    My teacher taught us question where you try to find the equation from an inequlity like

    -3<x<0 And x>2
    =
    x^3+x^2-6x >0




    But what if the question is Or
    Does it change the outcome in these style of questions?

    The book with all my homework uses And does that effect the outcome of these types of questions?
    If so how...I understand the difference between and/or but how does it effect the answer? I tried a question as if it was an "or" question and it worked but I would like input thanks so much.
    Last edited by brentwoodbc; December 27th 2008 at 05:48 PM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by brentwoodbc View Post
    My teacher taught us question where you try to find the equation from an inequlity like

    -3<x<0 And x>2
    =
    x^3+x^2-6x >0




    But what if the question is Or
    Does it change the outcome in these style of questions?

    The book with all my homework uses And does that effect the outcome of these types of questions?
    If so how...I understand the difference between and/or but how does it effect the answer? I tried a question as if it was an "or" question and it worked but I would like input thanks so much.
    I can't understand the formatting of your inequality.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Nov 2008
    Posts
    184
    from book

    write a cubic inequality that has each solution

    Qustion
    -3< x<0 and x>2

    answer

    x^3 + x^2 -6x > 0

    she taught us with "or" the book says "and" but when I do it the way she says it works but and and or are different.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: December 8th 2011, 10:27 AM
  2. Equation or Inequality
    Posted in the Algebra Forum
    Replies: 3
    Last Post: April 13th 2011, 04:44 AM
  3. Replies: 8
    Last Post: July 8th 2010, 09:41 PM
  4. Finding certain scalars to get a certain inequality?
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: January 25th 2010, 05:57 AM
  5. Replies: 5
    Last Post: March 21st 2009, 02:54 PM

Search Tags


/mathhelpforum @mathhelpforum