Difference between revisions of "Vertical line test"
m |
Etmetalakret (talk | contribs) |
||
| Line 10: | Line 10: | ||
{{stub}} | {{stub}} | ||
| − | [[Category: | + | [[Category:Algebra]] |
| − | |||
[[Category:Functions]] | [[Category:Functions]] | ||
Revision as of 12:02, 14 July 2021
The vertical line test is a way of determining whether or not a plotted graph is a function.
The vertical line test states that a relation is a function iff no vertical line intersects the graph in more than one point.
This is because a function cannot have more than one output for any one input.
For example, 
is a function because any vertical line intersects it in, at most, one point, while 
is not a function (try the line 
).
In other words, for every x value, there should only be one y value.
This article is a stub. Help us out by expanding it.
