Now that we can graph the vertical and horizontal asymptotes, x-intercepts, sketch the graphs, let's consider other discontinuities: holes in the graph. Follow along on this worksheet as you watch the video.
Here are some spoilers for problems 3 and 4 for those of you still having difficulty factoring quadratics.
Here are some more example problems for finding removeable discontinuities and graphing from start to finish.
Warning! The widget on the the previous section will NOT show the holes in the graph although it does list them as excluded from the domain.