Graphs That Are Not Functions Examples. This occurs everywhere except at the vertex of the graph. The graph would look like this.
Which graphs are functions. The vertical line test a graph or set of points in the plane is a function if no vertical line contains more than one of its points. The functions whose graphs are shown below are said to be continuous since these graphs have no breaks gaps or holes.
Breaks gaps or points at which they are undefined.
We now present examples of discontinuous functions. 1 for x 0. Breaks gaps or points at which they are undefined. To graph the linear function we can use two points to connect the line.
