Plz help What is undefined?

undefined is when it can't be defined. it can't have a valid answer.

Undefined

Mathematics

In mathematics, the term undefined is often used to refer to an expression which is not assigned an interpretation or a value. The term can take on several different meanings depending on the context. For example: In various branches of mathematics, certain concepts are introduced as primitive notions.

There you go bro.

- (2, -7)

- lines r and s and lines t and u must be parallel