1.Find the number of points of intersection of the straight line L1 and L2
L1: x=3
L2: y=3
我知答案係1 但係唔識寫返個step出黎
help me!!!
thx!
F.4 mathz 1題
2010-09-25 7:09 am
回答 (1)
2010-09-25 7:21 am
✔ 最佳答案
{L1: x=3...(1){L2: y=3...(2)
Sub (1) into (2):
x=y=3
Hence, we know the intersection point is (3,3) and the number of intersection point is 1.
收錄日期: 2021-04-22 00:51:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100924000051KK03503