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Thread: finding point p

  1. #1
    New Member
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    Nov 2015

    finding point p

    curve c equals y=x(cubed)-2x(squared)-x+9

    point p equals (2,7)

    show that p lies on c

  2. #2
    Elite Member stapel's Avatar
    Join Date
    Feb 2004


    Quote Originally Posted by tbobex View Post
    Curve C [is represented by] y = x3 - 2x2 - x + 9

    Point P [is located at] (2,7)

    Show that P lies on [the curve] C
    For a point to lie on the curve, what must be true about the point and the curve? In particular, what must be true about the x- and y-coordinates of the point, and the x- and y-values for the line's equation? (Hint: You learned about this for straight-line equations, and the connection is exactly the same for this non-linear equation.)

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