Question

does the relation shown below define a function? no yes

Explanation:

Step1: Recall the vertical line test

A relation is a function if every vertical line intersects the graph at most once.

Step2: Apply the vertical line test to the given graph

Looking at the graph, if we draw a vertical line (any vertical line), it will intersect the blue curve at only one point. This satisfies the vertical line test for a function.

Answer:

Yes