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Math Help - functions

  1. #1
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    functions

    if f:R-R is given by f(x)=(x+3)/2 and g:R-R given by g(x)=2x-3 is f(inverse)=g
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  2. #2
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    Well, swap the \displaystyle x and \displaystyle y in \displaystyle f(x), and see if you can rearrange it to get \displaystyle g(x).
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  3. #3
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    Or more fundamentally, use the definition of "inverse function". Are f(g(x))= x and g(f(x))= x for all x?
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