Question

look at this table:

x	y
10	14
13	14
3	10
-11	4

is this relation a function?
□ yes □ no

Explanation:

Step1: Define function criterion

A relation is a function if every input $x$ has exactly one output $y$.

Step2: Check unique x-values

Review all $x$-values: $2, 10, 13, 3, -11$. Each $x$ appears only once, so each has one corresponding $y$.

Answer:

yes