Question

what is a onto function?​

Answer 1

Answer:

In mathematics, a surjective function (also known as surjection, or onto function) is a function f that maps an element x to every element y; that is, for every y, there is an x such that f(x) = y. In other words, every element of the function's codomain is the image of at least one element of its domain.

Answer 2

Answer:

Properties of a Surjective Function (Onto) :-

• We can define onto function as if any function states surjection by limit its codomain to its range.

• The domain is basically what can go into the function, codomain states possible outcomes and range denotes the actual input of the function.

• Every onto function has a right inverse.

• Every function with a right inverse is a surjective function.

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