Use the vertical line test to determine whether or not the graph is a graph of a function.
-

Question

Quizplus · Accepted Answer

The vertical line test shows that there are multiple points where a vertical line intersects the graph, indicating that there are multiple outputs for a single input and therefore it is not a function. The graph fails the vertical line test, meaning there exists a vertical line that intersects the graph in more than one point. Therefore, it is not a function.

Use the Vertical Line Test to Determine Whether or Not