If each horizontal line crosses the graph of a function at no more than one point, then the function is one-to-one. In a one-to-one function, given any y there is only one x that can be paired with the given y.Ī graph of a function can also be used to determine whether a function is one-to-one using the horizontal line test: This sounds confusing, so let’s consider the following: If a function has no two ordered pairs with different first coordinates and the same second coordinate, then the function is called one-to-one. The concept of one-to-one functions is necessary to understand the concept of inverse functions. Study Blue Tutorial: Note-taking and Flashcard Tool.Evernote Tutorials: Note-taking and Organization tool.Procrastination, Burnout, and Motivation.Problem Solving, Experiential Learning, and Critical Thinking.Business and Professional Communication.American National Standard for writing abstracts.Incorporating Sources into your Writing.When Researching, Keep Track of the Following.How to Find Books on the Library Website.How to Find Articles Using Google Scholar.
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