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Welcome to your first challenge! Get ready for an amazing ride through a handful of hands-on graphing challenges using Desmos, the free and fantastically-beautiful online graphing calculator.

A few recommendations:

• If possible, work with a partner and use two devices
• On one device—smartphone, laptop, or tablet—display these challenges
• On the second device—preferably a laptop or tablet—go to www.desmos.com
• If you’re working with a single device, keep multiple browser tabs open

Two more things worth noting before we begin:

If you’re looking for solutions, I’ve “hidden” them at the bottom of each challenge page. Don’t spoil the fun by peeking too soon!

Also, feel free to bounce around from one category to another without completing all three levels. Use the menu at the top for easy navigation within the “11 Challenges.”

Alright, you’re all set to embark! Happy graphing!

Basic

Goal: Use five expression lines to plot the following five points.

Advanced

Goal: Use one expression line (with a table) to plot the following five points.

Legendary

Goal: Use two expression lines (no tables allowed!) to plot the following five points.

Hint: Have you seen lists? They pack a powerful punch!

Solutions

Get ’em here.

You Create

Use what you’ve learned about points to create your own amazing graph. Share it here.

(Need some help with how to share a graph? Check out 11 Challenges: Saving and Sharing (#9).)