Hyperbolas

Put trace on and move x to create hyperbola. Refresh the screen and then move the foci apart and recreate a new hyperbola.

Turn off trace. Turn off segments p and q the ones showing the distances. Turn on conic "c" the hyperbola last constructed. Turn on point M--the center, and points V1 and V2, the vertices. Turn on lines m and n--the asymptotes. Now move the foci around and see what happens.