Conics

This achievement standard involves sketching graphs of conic sections and writing equations related to conic sections.ConicSections

  • Sketch graphs of conic sections and write equations related to conic sections.
  • Graphs will be selected from the circle, ellipse, parabola and hyperbola. Completion of the square may be required.
  • Appropriate features must be indicated, for example: asymptotes and intercepts.
  • Equations may be in Cartesian or parametric form.
  • Writing equations will be for a given graph of a conic section.

  • Solve problems involving conic sections.
  • Problems involving modelling with conic sections may include contexts such as: bridges, cross sections of tunnels, profiles of shadows formed by light shades, ovals, cross sections of punchbowls.
  • Problems may involve finding:

    • equations of tangents or normals

    • points of intersection between lines and conics.

Note: implicit or parametric differentiation may be required to find equations of tangents or normals.

  • Solve more complex conic section problems.
  • Problems may involve:

    • a proof

    • a chain of reasoning

    • loci

    • knowledge of eccentricity or directrix.

Leave a Reply

 
 
 

Any views or opinion represented in this site belong solely to the authors and do not necessarily represent those of the University of Otago. Any view or opinion represented in the comments are personal and are those of the respective commentator/contributor to this site.