Here's a question for the day, it's simple but it needs explaining. explain why the vertical line test is used to determine if a graph represents a function. i will vote from the two and might even vote for brainiest : d

It is used to see if a graph represents a function because if there is 2 dots or intersecting lines within the other lines then it is not a function. if there is only one line or dot, then yes, it is a function. hope i explained it well.

Ithink it is b and d