Calculus

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Given f(x)=x+sqrt(x)
calculate the tangent line at the point (9,12)

y=___?__(x-9)+12

  • Calculus -

    you have a point: (9,12)
    and a slope: y'(9) = 7/6

    so the line is

    y-12 = 7/6 (x-9)

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