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    Hello everyone. I have this question:

    The curve C is given by the equation y = mx^3 - x^2 + 8x + , for a constant m.

    Also, the point P lies on C, and has an x value of 5

    The normal to C at P is parallel to the line given by the equation y + 4x - 3 = 0

    Hence find the value for m?

    I know what the gradient of the tangent is, and I think that m is 3/100, but I'm not sure... Can anyone help?
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    (Original post by Electrogeek)
    I know what the gradient of the tangent is, and I think that m is 3/100, but I'm not sure... Can anyone help?
    Agree with m=3/100.
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    (Original post by ghostwalker)
    Agree with m=3/100.
    Thanks - I just wasn't sure.
 
 
 
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Updated: November 5, 2015
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