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Math Help - How to solve for c and d?

  1. #1
    Member
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    Apr 2008
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    How to solve for c and d?

    Use the law N = c(t)^d

    at t = 1, N = 1.7
    at t = 2, N = 2.4
    at t = 3, N = 2.9
    at t = 4, N = 3.4

    Solve for c and d.

    I've been trying to do this for a while, but not sure how to solve it.
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  2. #2
    MHF Contributor
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    West Malaysia
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    Quote Originally Posted by AlphaRock View Post
    Use the law N = c(t)^d

    at t = 1, N = 1.7
    at t = 2, N = 2.4
    at t = 3, N = 2.9
    at t = 4, N = 3.4

    Solve for c and d.

    I've been trying to do this for a while, but not sure how to solve it.
    HI

    Are c and d both constants ? If so ..

    N=ct^d

    When t=1 , N=1.7

    1.7=c(1)^d , one to the power of anything would give you 1 .

    c=1.7

    at t = 2, N = 2.4

    2.4=1.7(2)^d

    1.41=2^d

    d=\frac{\ln 1.41}{\ln 2}
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