# Geometric Mean Cameo Appearance within a Parabola

- Author:
- Tim Brzezinski

- Topic:
- Geometric Mean, Parabola

Creation of this resource was inspired by a tweet posted by Bryan Penfound.
Feel free to move the

**LARGE BLUE POINT**and**LARGE ORANGE POINT**anywhere you'd like. Slide the slider slowly. As you do, pay close attention to what you observe here. How would you describe the phenomena you see in your own words?**How can we formally prove what is dynamically illustrated here?**