所求方程式L2的x軸截 = –3/2;斜度 = -1 除以-1/2 = -1(-2) = 2;
所求方程式即可寫成:
x = 2y – 3/2
簡約為:
L2: 2x–4y+3 = 0
PC 仔更正
收錄日期: 2021-04-13 16:11:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081020000050KK00879