Question

look at this table:

x	y
20	15
18	20
7	15
2	20
-7	17

is this relation a function?
options: 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

• For \( x = 18 \), we have \( y = 15 \) and \( y = 20 \). So the input \( x = 18 \) is associated with more than one output.

Answer:

no