look at this graph: \nis this relation a function?\nyes\nno

Explanation:

Step1: Recall vertical line test rule

A relation is a function if every vertical line intersects its graph at most once (each x-value maps to only one y-value).

Step2: Analyze the given graph

Check each x-coordinate of the plotted points: all x-values are unique, so no vertical line will pass through more than one point.

Answer:

yes