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Math Help - Exponential Function Help

  1. #1
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    Exponential Function Help

    The formula of the form I am using is y=a(b^x)+d. To find out what b is I know that you use the table (taking the quotient of the first set of differences). What should I do to find out what a and d is? Let me know if I should put more information. Any suggestions would be very helpful.
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  2. #2
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    Re: Exponential Function Help

    What information do you have? A set of points or a graph?
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  3. #3
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    Re: Exponential Function Help

    Yes, here are the coordinates:

    (0,36) (1,68) (2,84) (3,92) (4,96) (5,98)
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  4. #4
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    Re: Exponential Function Help

    That is a lot of information. You can make a system of equations and solve for a,b and d using those points

    Choosing 3 at random and substituting them into y=a(b^x)+d

    (1,68) : 68=a(b^1)+d


    (0,36) : 36=a(b^0)+d


    (3,92) : 92=a(b^3)+d

    Can you take it from here?
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  5. #5
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    Re: Exponential Function Help

    I believe I can. Thank you. I'll post what I come up with when I am done.
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