Is the following ordered pairs forms a function ?
(54,9)( 54, 10 )(61,17) (45, 10)(65,11) (50 , 12)

The correct answer is: { 9, 10,17 , 11,12 }

We have given the data in the form of ordered pairs.
We will convert the given data into points
As (54, 9), (54, 10) , (61, 17) , (45, 10) , (65, 11) , (50 , 12)
Domain:-  { 54 , 61 ,45, 65 , 50 }
Co- Domain:- { 9, 10,17 , 11,12 }
From the given data we can analyse that the member in the domain set i.e.54 has two images i.e. 9 and 10 in the co-domain .
We know that in a function one member in the domain set cannot have two images in the co-domain set.
Therefore, the given relation is not a function.
Note: All functions are relations but all relations are not functions.