One-one function: Difference between revisions
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A function is one-one if and only if no horizontal line intersects its graph more than once. | A function is one-one if and only if no horizontal line intersects its graph more than once. | ||
[[File:One-one function geometric proof.PNG| | [[File:One-one function geometric proof.PNG|500px]] | ||
Revision as of 15:23, 22 April 2022
A function is called one-one function if it never adopts the same value twice.
Geometric proof
A function is one-one if and only if no horizontal line intersects its graph more than once.
