Question

Fill in the blank: A function f : X → Y is said to be ______, if every element of Y is the image of some element of X under f, i.e., for every y ∈ Y, there exists an element x in X such that f (x) = y.

Answer 1

Answer:

A function f : X → Y is said to be onto / surjective, if every element of Y is the image of some element of X under f, i.e., for every y ∈ Y, there exists an element x in X such that f (x) = y.

Answer 2

☆$\red {HELLO\:DEAR}$☆

✌️$\huge{ \boxed{ \underline{ \bf \red{ANSWER}}}}]$✌️

onto

☆$\green {VISHU\:PANDAT}$☆

☆$\blue {FOLLOW\:ME}$☆