Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Algebra of functions

  1. Feb 9, 2004 #1
    I'm not too confident with problems dealing with the algebra of functions. For example, how would you approach this problem:

    Function f satisfies: f(xy) = f(x)/y
    If f(500) = 3, what is f(600)?

    Thanks
     
    Last edited: Feb 9, 2004
  2. jcsd
  3. Feb 9, 2004 #2

    NateTG

    User Avatar
    Science Advisor
    Homework Helper

    [tex]f(xy)=\frac{f(x)}{y}[/tex]
    Now, if
    [tex]xy=500[/tex] and [tex]x=600[/tex]
    can you figure out what [tex]y[/tex] is?
     
  4. Feb 9, 2004 #3

    matt grime

    User Avatar
    Science Advisor
    Homework Helper

    600=500*(6/5)
     
  5. Feb 9, 2004 #4
    Ah! Simple enough. Thanks a bunch.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?