Look at this set of ordered pairs: (9,8)
(12, 15)
(5, 7)
(4,9)
Is this relation a function?
yes
no

Yes, the given relation is a function.

Step-by-step explanation:

As given,

(4, 9)

(5, 7)

(9, 8)

(12, 15)

x                          y

4                          9

5                          7

9                          8

12                         15

As each input has different and unique output values.

So, the given relation is a function.

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