Web Reference: Nov 11, 2022 · The Vertical Line Test helps you to determine if a given relation is a function. Now, let's find out how the vertical line test works with realistic examples. Again, for a relation to be a function, the relation must have exactly one output for a given input. Vertical line test is used to find if a given equation is a function or not. The vertical line if it cuts the graph of the function only once, then the graph represents 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 function because a function has only one output value for each input value.
YouTube Excerpt: How to determine if an expression/graph represents a "FUNCTION". Use the
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