Functions
Types of Functions
One-on-one or Injective: A function f : A → B is called one – to – one or injective if each element of B is the image of at most one element of A
Onto or Surjective: A function f : A → B is called onto or Surjective if every element of B is the image of some element of A.
One – To – one Correspondence or Bijective: A function f : A → B is said to be a one – to – one correspondence, or Bijective, or a bijection, if it is one – to – one and onto at the same time.
Find out more about functions by reading the explanation below.
Practice: Answer the following exercises about functions.