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Domain Question

  1. Feb 16, 2009 #1
    1. The problem statement, all variables and given/known data
    I have a review in Calc and the question was:
    f(x) has a domain of [-1 , 5) Find the domain of g(x) = f(2x+3)



    2. Relevant equations



    3. The attempt at a solution
    I got [-1 , 2)
     
  2. jcsd
  3. Feb 16, 2009 #2

    Tom Mattson

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    If x=-1, then 2x+3=_______?
    If x=2, then 2x+3=________?

    Does that agree with the domain of f?
     
  4. Feb 17, 2009 #3

    HallsofIvy

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    For what value of x is 2x+ 3= -1? For what value of x is 2x+ 3= 5?
     
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