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AP Calc.

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find the equation of the tangent line to f(x)=square root x passing through (-4,0)

  • AP Calc. -

    y = √x = x^(1/2)
    dy/dx = (1/2)x^(-1/2) = 1/(2√x)

    so at (-4,0), dy/dx = 1/2√-4 ----> undefined in the real numbers
    uh uh!!

    look at y = √x, the point (-4,0) does not lie on your curve, so ...... bogus question

    check your typing

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