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Math Help - Domain and Range

  1. #1
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    Domain and Range

    Hey guys, I need help with another question:

    f(x) = \sqrt{3 - |x+5|}

    a) What is the domain of f ?
    b) What is the range of f if the domain of f is (-7, -3)?
    c) If the domain of f is {-7, -3}. Give an example of a function g whose domain is
    also {-7, -3} and equals the function f.

    THANKS!
    Last edited by mr fantastic; September 15th 2009 at 10:08 PM. Reason: Wrote equation using latex
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  2. #2
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    Quote Originally Posted by goliath View Post
    Hey guys, I need help with another question:

    f(x) = \sqrt{3 - |x+5|}

    a) What is the domain of f ?
    b) What is the range of f if the domain of f is (-7, -3)?
    c) If the domain of f is {-7, -3}. Give an example of a function g whose domain is
    also {-7, -3} and equals the function f.

    THANKS!
    a) Solve 3 - |x+5| \geq 0 (I suggest that drawing a graph of y = 3 - |x+5| will help).
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