Question

look at this table:

x	y
2	0
8	11
-6	0
5	3
19	9

is this relation a function?

yes
no

Explanation:

Step1: Recall function definition

A relation is a function if each input (x - value) has exactly one output (y - value).

Step2: Check x - values in the table

The x - values are 3, 2, 8, - 6, 5, 19. Each of these x - values appears only once. So each input has exactly one output.

Answer:

yes