Equation of a straight line Posted by chtanmaths 3 You will be taught next week about m1 x m2 = -1 !!! Share this:FacebookXLike Loading... Related
Matthew, This man tried to solve an objective question. (2,-3) is given by the Question. The answer is “B” for this particular Question. Reply
Chtanmath 我的数学资讯分享网 
老师，那个video里面（2，-3）是怎样得到的？
Matthew,
This man tried to solve an objective question. (2,-3) is given by the Question. The answer is “B” for this particular Question.
谢谢老师，这个网页对我来讲非常有用。
我对m1*m2=-1有点概念了。