Aug 19, 19 · Also known as an injective function, a one to one function is a mathematical function that has only one y value for each x value, and only one x value for each y value Let's take y = 2x as an example Plugging in a number for x will result in a single output for y Also, plugging in a number for y will result in a single output for x BothTo prove relation reflexive, transitive, symmetric and equivalent;Use the horizontal line test to determine whether a function is onetoone;
Mathwords One To One Function