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Need a clue on limits, have the answer need explanation

  1. Jun 14, 2012 #1
    I have grasped everything in the first 2 segments of my limits chapter, but somehow I am missing out on this problem.

    lim (f(x)-4)/(x-2) = 1.........find lim
    x->4 x->4 f(x)

    I am missing something very fundamental and can not find an example explanation in my text. I have the answer which is 6, but have no idea the steps to get there.

    Any help?
     
  2. jcsd
  3. Jun 14, 2012 #2

    LCKurtz

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    $$lim_{x\rightarrow 4}\frac{f(x)-4}{x-2} = \frac{\lim_{x\rightarrow 4}(f(x))-4}{4-2}=1$$Does that help?
     
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