求直線方程 | Finding Equations of Straight Lines

影片內容：

00:05 – 重溫基本的坐標幾何 | quick review on basics of coordinate geometry
02:34 – 基本概念與點斜式 | the fundamental idea and point-slope form
11:01 – 兩點式 | two-point form
13:47 – 斜截式 | slope-intercept form
15:32 – 截距式 | two-intercept form