http://img20.imageshack.us/img20/1376/70207153.jpg
圖片參考：http://img20.imageshack.us/img20/1376/70207153.jpg
maths
2011-11-03 6:11 am
回答 (1)
2011-11-03 6:34 am
✔ 最佳答案
A(2, 0)Hence, the x coordinate of B = 2
Put x = 2 into the equation y = kx
y = 2k
Hence, the coordinates of B = (2, 2k)
AB
= 2k - 0
= 2k
AD = 2k
OD
= AD + OA
= 2k + 2
The x coordinate of D = 2k + 2
The y coordinate of D = 0
Hence, the coordinate of D = (2k + 2, 0)
參考: 胡雪
收錄日期: 2021-04-20 11:46:11
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111102000051KK01038