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Math Help - Can't rearrange this equation

  1. #1
    Newbie
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    Mar 2009
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    Can't rearrange this equation

    If I plot values of T^4 against d I obtain a straight lined gradient with an intercept.

    I need to rearrange the following equation into the y=mx +c form where y =T^4 and x = d. K is a constant.

    T^4 = 4pi^4 L K /g^2 - 8pi^4 Ld/g^2

    If I identify m and c I can find values for K and g.
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  2. #2
    Junior Member
    Joined
    Mar 2009
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    Your equation is already separated:

    T^4=\frac{4*\pi^4*L*K}{g^2}-\frac{8*\pi^4*L*d}{g^2}=-\frac{8*\pi^4*L}{g^2}*d+\frac{4*\pi^4*L*K}{g^2}

    T^4=-\frac{8*\pi^4*L}{g^2}*d+\frac{4*\pi^4*L*K}{g^2}

    m=-\frac{8*\pi^4*L}{g^2}<br />
    c=\frac{4*\pi^4*L*K}{g^2}

    Have a nice day !
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  3. #3
    Newbie
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    Mar 2009
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    Thank you very much,

    Had a Eurecka moment shortly after posting this and after making g squared the subject of m, rearranging c to find K and substituting g squared into k, the solution to K boiled down to an elegant 2c/m.
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