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Thread: find the value of k.....

  1. October 16th 2009, 10:04 AM #1
    vance
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    find the value of k.....

    I need some help with this exercise
    find a value of the constant k such that the limit exist

    lim (x^2 -kx+4)/x-1
    x →1
    thanks in advance!!
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  2. October 16th 2009, 10:16 AM #2
    apcalculus
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    Quote Originally Posted by vance View Post
    I need some help with this exercise
    find a value of the constant k such that the limit exist

    lim (x^2 -kx+4)/x-1
    x →1
    thanks in advance!!
    x=1 has to be a zero of the numerator so that (x-1) cancels out when finding the limit.

    Good luck!
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