Locus 1 (fixed distance from a fixed point)

Definition of Locus 軌跡的定義
A locus is a path formed by a collection of points which satisfy one or more given conditions.[br]軌跡是一條由點構成的路徑，這些點均滿足某單一條件或同時滿足多個條件。
1. A moving point P is 3 units from a fixed point Q. Mark all the positions that P can be.
2. what is the locus of the point P？(i.e. 所有P點組成的形狀）
3. Describe the locus of P. e.g. length，width，height，radius，centre
Luk
– WMY_hk

Information: Locus 1 (fixed distance from a fixed point)