Vertical Line Test
Revision as of 09:33, 24 June 2006 by Ragnarok23 (talk | contribs)
What It's For
The vertical line test is a way of determining if a plotted graph is a function.
The Test
If a vertical line can be placed anywhere on the graph such that it touches two points, then the graph is not a function. This is because a function cannot have more than one output for one input.
