Question

look at this table:

x	y
18	14
3	18
14	1

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 each x - value

• For \(x = 4\), \(y=12\) (one output).
• For \(x = 18\), \(y = 14\) (one output).
• For \(x=3\), \(y = 18\) (one output).
• For \(x = 14\), \(y=1\) (one output).

All x - values have unique y - values.

Answer:

yes