What does the vertical line test tell you?
If the regular function, f, is a function or not.
The vertical line test is a method used to determine whether a given curve represents a function on a graph. The test involves drawing a vertical line anywhere on the graph of the curve. If the line intersects the curve at only one point at a time, then the curve represents a function. However, if the vertical line intersects the curve at more than one point, then the graph does not represent a function, but rather a relation or set of ordered pairs.
In summary, the vertical line test is a quick and effective way to determine if a given graph is a function or not. If the graph passes the vertical line test, then it is a function. If it fails the test, then it is not a function.
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