Recent content by glasvegas

  1. G

    Point on curve closest to point (18,0)

    Oops yeah that was a typo. I have managed to solve using distance formula. I'm still curious as to how to do it using the perpendicular to tangent method.
  2. G

    Point on curve closest to point (18,0)

    Homework Statement Find the point on the curve y=x^2 that is closest to the point (18,0) Homework Equations y=x^2 The Attempt at a Solution so, dy/dy=2y Then I tried to use the fact that the product of 2 straight lines that meet at right angles is -1 to come up with a...