Question

look at this table:
x | y
14 | 9
2 | -9
11 | 1
is this relation a function?
yes no

Explanation:

Step1: Recall the definition of a function

A relation is a function if each input (x - value) has exactly one output (y - value). In other words, no two ordered pairs in the relation can have the same x - value with different y - values.

Step2: Check the x - values in the table

The x - values given in the table are 14, 2, and 11. Each of these x - values appears only once, and each is associated with a unique y - value (9, - 9, and 1 respectively). There are no repeated x - values with different y - values.

Answer:

yes