函數的變換 (反射) | Transformation of Functions (Reflection)
影片內容：
00:18 – 沿 x-軸反射 | reflection about the x-axis
02:50 – 沿 y-軸反射 | reflection about the y-axis
05:30 – 例子 | example
00:18 – 沿 x-軸反射 | reflection about the x-axis
02:50 – 沿 y-軸反射 | reflection about the y-axis
05:30 – 例子 | example