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Continuity ,a formal proof

  1. Jun 6, 2009 #1
    Give a formal proof that the function , f(x) = 2x + 3 is continuous over the real Nos R
     
  2. jcsd
  3. Jun 6, 2009 #2

    Hurkyl

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    Why?
     
  4. Jun 7, 2009 #3

    HallsofIvy

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    What is the definition of "continuous on a set"? That is a good place to start.

    Hurkyl is saying "It's your question- you go first!"
     
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