# Is (3,4),(5,4),(1,3),(4,1),(9,4) a function?

##### 1 Answer

May 20, 2018

#### Answer:

Yes it is.

#### Explanation:

A collection of ordered pairs is a function is no two pairs have the same first and different second elements.

If we arrange these pairs in order of the first element, we can see that there are no two pairs with equal first and different second elements.

(3,4),(5,4),(1,3),(4,1),(9,4)

(1,3),

(3,4),

(4,1),

(5,4),

(9,4)