Look at this set of ordered pairs: (1, 17)
(18, 0)
(5, 14)
(0,5)
Is this relation a function?
yes
no
Submit

Yes, this relation is a function.

This is a function because it would pass the straight line test. Without graphing you can tell it’s a function by seeing that none of the x values repeat.

In this problem it decreased 20%