Question

1. use the vertical line test to determine if each relation is a function

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 circle

For a circle (like the one in the graph), we can draw a vertical line (e.g., \(x = 0\)) that intersects the circle at two points.

Answer:

The relation (the circle) is not a function.