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Conic Sections as a Locus

In this task you will experience the formation of Parabola as locus of a point which is equidistant from a given point and a given line. Follow the instructions and let's explore together.

If the directrix line is vertical and the focus lies on the left side of the directrix, the parabola open

勾選所有適當的選項
  • A
  • B
  • C
  • D
核對我的答案 (3)

If the directrix line is horizontal and the focus lies above the directrix, the parabola open

勾選所有適當的選項
  • A
  • B
  • C
  • D
核對我的答案 (3)

If the directrix line is horizontal and the focus lies below the directrix, the parabola open

勾選所有適當的選項
  • A
  • B
  • C
  • D
核對我的答案 (3)

If the directrix line is vertical and the focus lies on the right side of the directrix, the parabola open

勾選所有適當的選項
  • A
  • B
  • C
  • D
核對我的答案 (3)