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Math Help - Range

  1. #1
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    Range

    f(x)=3x-\frac{2}{(x+1)^{1/2}}

    Domain= (-1,infinity)

    How do you find range?
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  2. #2
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    Re: Range

    Quote Originally Posted by theloser View Post
    f(x)=3x-\frac{2}{(x+1)^{1/2}}
    Domain= (-1,infinity)
    How do you find range?
    Did you start by looking at a plot of the function.
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  3. #3
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    Re: Range

    Yes, I graphed but can't find exact points...
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  4. #4
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    Re: Range

    Quote Originally Posted by theloser View Post
    Yes, I graphed but can't find exact points...
    The graph is quite clear on what the range is: plot y = 3x - 2/Sqrt[x+1] from x = -1 to x = 20 - Wolfram|Alpha

    Where are you stuck?
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  5. #5
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    Re: Range

    Range=(-infinity,infinity)?
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  6. #6
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    Re: Range

    If you keep guessing, you will not get it. Prove it!
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