# What is the domain and range of {(1,8) (2,3) ( 3,5) (4,0) (5,9)}?

May 8, 2017

Domain is Set A : { 1,2,3,4,5 }
Range is Set C : { 8,3,5,0,9 }

#### Explanation:

Let $f$ is a Function , $f$ : A→B, Set A is known as the Domain of $f$ and Set B is known as the Co-Domain of $f$. The set of all $f$ images of elments of A is known as the Range of $f$. Thus :-

Domain of $f$ = {$x$ I $x$ ϵ A, (x, f(x)) ϵ$f$ }

Range of $f$ = {$f \left(x\right)$ I $x$ ϵ A, $f \left(x\right)$ϵ B }

NOTE :- "Range is a subset of Co-domain"