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Math Help - Some true and false questions!

  1. #1
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    Some true and false questions!

    1: f(x)=e^x is an example of f(x)=b^x, where b is a positive number
    True or False

    2: Given the graph of the exponential function f(x)=b^x for which the base, b, is greater than 1. The function f is a one-to-one function.
    True or False

    3:f(x)=log3x is the inverse of g(x)=x^3.
    True or False

    4:Given the graph of the exponential function f(x)=b^x for with the base, b, is greater than 1. The range of f is y>=0
    True or False
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  2. #2
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    Quote Originally Posted by RBlax View Post
    1: f(x)=e^x is an example of f(x)=b^x, where b is a positive number
    True or False

    2: Given the graph of the exponential function f(x)=b^x for which the base, b, is greater than 1. The function f is a one-to-one function.
    True or False

    3:f(x)=log3x is the inverse of g(x)=x^3.
    True or False

    4:Given the graph of the exponential function f(x)=b^x for with the base, b, is greater than 1. The range of f is y>=0
    True or False
    what are your thoughts?
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  3. #3
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    1=true
    2=false
    3=true
    4=true

    I'm asking so I can get my crap straight.
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  4. #4
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    Quote Originally Posted by RBlax View Post
    1=true
    2=false
    3=true
    4=true

    I'm asking so I can get my crap straight.
    well, you only got one of them correct.
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  5. #5
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    So 1 & 3 is false.

    2 & 4 is true correct?

    I'm on here asking for help to understand these questions. Thanks for you help =)
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  6. #6
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    Quote Originally Posted by RBlax View Post
    1: f(x)=e^x is an example of f(x)=b^x, where b is a positive number
    True or False

    2: Given the graph of the exponential function f(x)=b^x for which the base, b, is greater than 1. The function f is a one-to-one function.
    True or False ... do you understand what a one-to-one function is?

    3:f(x)=log3x is the inverse of g(x)=x^3.
    True or False

    the inverse of x^3 is x^(1/3)

    the inverse of log(3x) is b^(3x) , depending on the base, b,of the logarithm.

    4:Given the graph of the exponential function f(x)=b^x for with the base, b, is greater than 1. The range of f is y>=0
    True or False

    for b > 0 , f(x) = b^x can never equal 0
    ...
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  7. #7
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    I'm trying to learn it that's what I'm asking
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