The goal is at the lowest point of the first arch, not at a cusp. Adjust 'a' so the arch's trough lines up with the goal.

The goal is at the lowest point of the first arch, not at a cusp. Adjust 'a' so the arch's trough lines up with the goal.

Adjust the sliders to change the parametric equation, and the marble will follow your path!

Task 5 of 10