line1:y=mx+4 // line2:(2m+1)x+y=0
find m
If line 1//x=(3m+1)-a=0
find m
數學問題!!
2007-11-22 12:40 am
回答 (1)
2007-11-22 1:03 am
✔ 最佳答案
line 1: y = mx+4line 2: y = -(2m+1)x
'.' line1 || line2,
.'. m = -(2m+1)
m = -2m-1
3m = -1
m = -1/3
=================================================
x=(3m+1) - a is a vertical line
m tends to infinity
收錄日期: 2021-04-13 22:25:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071121000051KK01943