Series Content LESSON 1 兩點之間的距離 | Distance between Two Points LESSON 2 直線的斜率 | Slope of a Straight Line LESSON 3 坐標平面上的平行及垂直線 | Parallel and Perpendicular Lines on a Coordinate Plane LESSON 4 中點公式及截點公式 | Mid-point Formula and Section Formula LESSON 5 利用坐標解決幾何問題 | Solving Geometric Problems using Coordinate System
