1. Question 214
    Coordinate Geometry - Circles - Geometry - Investigate Equation of Circle
  2. Question 4006
    was: Coordinate Geometry - Circles - Geometry - Equation of a circle 2
    now: Coordinate Geometry - Circles - Geometry - Matching Circles
  3. Question 1684
    was: Coordinate Geometry - Tangents and normals - The parabola
    now: Coordinate Geometry - Tangents and normals - Investigate Equation of Parabola
  4. Question 1686
    was: Coordinate Geometry - Tangents and normals - The ellipse
    now: Coordinate Geometry - Tangents and normals - Investigate Equation of Ellipse
  5. Question 1688
    was: Coordinate Geometry - Tangents and normals - The hyperbola
    now: Coordinate Geometry - Tangents and normals - Investigate Equation of Hyperbola
  6. Question 1690
    was: Coordinate Geometry - Tangents and normals - The rectangular hyperbola
    now: Coordinate Geometry - Tangents and normals - Investigate Equation of Rectangular Hyperbola
  7. Question 1652
    was: Coordinate Geometry - Conics - The family of conics
    now: Coordinate Geometry - Conics - Family of Conics using Polar Equations
  8. Question 1666
    was: Coordinate geometry - Parametric curves - The parabola
    now: Coordinate geometry - Parametric curves - Parametric Parabola
  9. Question 1668
    was: Coordinate geometry - Parametric curves - The ellipse
    now: Coordinate geometry - Parametric curves - Parametric Ellipse
  10. Question 1669
    was: Coordinate geometry - Parametric curves - The hyperbola
    now: Coordinate geometry - Parametric curves - Parametric Hyperbola
  11. Question 1670
    was: Coordinate geometry - Parametric curves - The rectangular hyperbola
    now: Coordinate geometry - Parametric curves - Parametric Rectangular Hyperbola
  12. Question 1181
    was: Coordinate geometry - Parametric curves - Various curves
    now: Coordinate geometry - Parametric curves - Lissajous Curves
  13. Question 1182
    was: Coordinate geometry - Parametric curves - Various curves 2
    now: Coordinate geometry - Parametric curves - Conchoids of Nicomedes
  14. Question 1183
    was: Coordinate geometry - Parametric curves - Various curves 3
    now: Coordinate geometry - Parametric curves - More Parametric Curves
  15. Question 1671
    was: Coordinate geometry - Parametric curves - Cycloids
    now: Coordinate geometry - Parametric curves - Cycloids