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

Question

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

Quizplus · Accepted Answer

The vertical line test states that if a vertical line intersects the graph at multiple points, then the graph is not a function. In the given graph, a vertical line can be drawn passing through the point where x = 0, which intersects the graph at two points. Therefore, the graph is not a function.

Use the Vertical Line Test to Determine Whether or Not