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The horizontal line test is a simple visual technique that shows if a function is one-to-one. Learn to use it with lots of examples and practice. Skip to content
Learn what the horizontal line test is and how it can help you check if the inverse of a function is a function. See examples of functions that pass the test!
Horizontal line test. The Horizontal line test is a simple way to see if a function is one-to-one (that is, it has exactly y-value corresponding with every x-value, or dependent value for every independent value). If a function passes the Horizontal line test, it has an inverse function.
Definition. The horizontal line test is a visual way to determine whether a function is one-to-one. If any horizontal line intersects the graph of the function more than once, the function fails this test and is not one-to-one.
The horizontal line test is an important tool to use when graphing algebraic functions. The quiz will show you graphs and ask you to perform the line test to determine the type of...
The horizontal line test is used to determine if a function is one-to-one, which is a necessary condition for the function to have an inverse. If a horizontal line intersects the graph of a function at more than one point, then the function is not one-to-one and does not have an inverse.
Inverse Functions: Horizontal Line Test for Invertibility. A function f is invertible if and only if no horizontal straight line intersects its graph more than once. Example #1: Use the Horizontal Line Test to determine whether or not the function y = x2 graphed below is invertible.
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σχετικά με: horizontal line test definition math word problems for kindergarten to 5Access the most comprehensive library of K-8 resources for learning at school and at home. Get thousands of teacher-crafted activities that sync up with the school year.
