Question

Look at this set of ordered pairs:

(9,8)
(12, 15)
(5, 7)
(4,9)
Is this relation a function?
yes
no

Answer 1

Yes, the given relation is a function.

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.