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True conic or degenerate case?

Exercise and reference answers

Left
True conic
Items
  1. Item
    Circle
    Answer
    True conic
  2. Item
    Ellipse
    Answer
    True conic
  3. Item
    Parabola
    Answer
    True conic
  4. Item
    Hyperbola
    Answer
    True conic
  5. Item
    A single point
    Answer
    Degenerate
  6. Item
    A straight line
    Answer
    Degenerate
  7. Item
    Two crossed lines
    Answer
    Degenerate
  8. Item
    Cut at the vertex
    Answer
    Degenerate
Right
Degenerate
Instructions
Swipe left for True conic, right for Degenerate.

Explanation

_Source: syllabus Mathematics, Ch 10 'Conic Sections'_
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