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Find the equation of the tangent line to the graph of f(x)=4ln(9x+2)at the point of x-coordinate x=2.

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JER

  1. slope = y'=4/(9x+2) * 9

    at x=2, y'=36/(20= 1.8 check that.

    y= mx+b= 1.8 x+ b
    put in x,y, solve for b.

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    bobpursley

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