Question

look at this table: (table content: x and y values) is this relation a function? options: yes, no

Explanation:

Step1: Recall function definition

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

Step2: Check unique x-values

Review all $x$-values: $2, -19, 20, 17, 5, 13$. Each $x$-value appears only once, so each has exactly one corresponding $y$-value.

Answer:

yes