Nov 11, 2022 · This free Vertical Line Test step-by-step guide will teach you how to figure out whether or not a relation is or is not a function by looking at its graph and using a simple …

The vertical line test satisfies the definition of a function: for every domain x value, there is only one range y value for the function. The vertical line x = a, if it cuts the curve y = f (x) at only …

Learn about the Vertical Line Test and how it can be used to determine whether a given relation is a function or not. Find out why this method supports the definition of a function.

The vertical line test can be used to determine whether a graph represents a function. If we can draw any vertical line that intersects a graph more than once, then the graph does not define a …

Jul 23, 2025 · Vertical Line Test is a simple method used in mathematics to determine whether a given graph represents a function. The test involves drawing a vertical line through different …

If you think about it, the vertical line test is simply a restatement of the definition of a function. Definition of a function: Every x value has a unique y value.

Learn how to use the vertical line test to determine if a relation is a function.

In mathematics, the vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y, for each unique input, x.

Conducting the vertical line test involves a simple process. You assess whether any vertical line intersects the graph at more than one point. If it does, that graph doesn’t represent a function. …

If any vertical line intersects the graph in more than one point, the graph does not represent a function. If the graph does represent a function, we say it “passes the vertical line test.”