First, click on the link below to read a "discussion about impossible graphs."

Impossible Graphs (web page)

Then, click on the link below to look at graphs and interpret domain and range to be possible or impossible. Answer the exploration questions at the bottom of the page for the graphs.

Possible or Not (web page)

Possible or Not? Exploration Questions

1. For each graph, determine if it can be a graph of a function or not. If the graph is impossible, why?

2. What parts of each impossible graph can you remove to turn it into a possible graph?