Web Reference: Check whether the input is a valid function step-by-step. AI may present inaccurate or offensive content that does not represent Symbolab's views. Save to Notebook! Dec 15, 2024 · By examining the inputs (x-coordinates) and outputs (y-coordinates), you can determine whether or not the relation is a function. Remember, in a function each input has only one output. Do you need to determine whether a relation is a function? The process may sound difficult, but it's actually pretty easy. To know if a relation is a function, just examine the inputs and outputs. When you’re given a set of ordered pairs, check whether any inputs have multiple outputs. If so, the relation is not a function. You can also do the vertical line test to check whether a relation is a function. This wikiHow guide shows you how to know when a relation is a function.
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