Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Mathematics (https://www.askmehelpdesk.com/forumdisplay.php?f=199)
-   -   If y= x-1 1/ (x-1), does y have a real between -2 and 2? (https://www.askmehelpdesk.com/showthread.php?t=651398)

  • Apr 16, 2012, 06:52 AM
    rorymckeague
    If y= x-1 1/ (x-1), does y have a real between -2 and 2?
    If

    show that y can't have a real value between -2 and 2?
  • Apr 17, 2012, 05:43 AM
    ebaines
    Suggest that you set up an equation that gives x as a function of y. Start by multiplying through by (x-1), rearrange, and you'll get a quadratic in x. Use the quadratic equation to solve for values of x given any y, and it will have a term that includes . So |y| can not be less than 2.
  • Apr 17, 2012, 11:38 AM
    rorymckeague
    Once again thank you for your help

    • All times are GMT -7. The time now is 06:53 PM.