The Thirsty Crow
1. Type your data (number of stones, height of water) one by one in the input bar.
2. Move the sliders a and b to fit a line to the data.
3. Use the equation of the line to refine your prediction.
4. Move the slider g to set the goal water level. (Pick a number between 14 and 16.)
5. Find the intersection point of the lines.