Vertical line test can be used to determine whether the graph of a relation is a funtion什么意思

问题描述:

Vertical line test can be used to determine whether the graph of a relation is a funtion什么意思

这位孩子,function拼错了……就是讲垂直线试验可以用来决定一条关于某种关系的曲线是否为一个函数.