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

Question

Quizplus · Accepted Answer

The vertical line test is a method to check whether a graph represents a function or not. If every vertical line intersects the graph at most once, then the graph is a function. In the given graph, there are at least two vertical lines that intersect the graph at two different points, violating the condition of the vertical line test. Hence, the given graph is not a function.

Use the Vertical Line Test to Determine Whether or Not