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Homework Help: Slope of inverse? Check

  1. Dec 17, 2004 #1
    :smile: My question says f(x)=(-5/7)x-3 determine the slope of f^-1(x) without finding the inverse. I think the answer is the slope of f^-1(x)=(-7/5)x
    Is this correct?
     
  2. jcsd
  3. Dec 17, 2004 #2
    Yes. It is correct. Once again, you can check this by graphing the function and seeing the reflection over f(x) = x
     
    Last edited: Dec 17, 2004
  4. Aug 11, 2011 #3
    I actually had the same question, where did the -3 go?
     
  5. Aug 11, 2011 #4

    SammyS

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    MaryB, the -3 has nothing to do with the slope.
     
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