Problem:
Graph the curve represented by the following equation in polar coordinates:

Visualization:
Using JKGraph:
  1. On the Formulas menu, choose Polar Formula: R=F(@).
  2. At the prompt, R(@) =, enter
    3*sin(9*@)
  3. At the prompt, @ Starting Value:, enter 0.
  4. At the prompt, @ Ending Value:, enter 180.
  5. Press the button, World Graph Domain.
  6. At the prompt, Graph X Minimum Value:, enter -3.1.
  7. At the prompt, Graph X Maximum Value:, enter 3.1.
  8. At the prompt, Graph Y Minimum Value:, enter -3.1.
  9. At the prompt, Graph Y Maximum Value:, enter 3.1.
  10. Press the OK button twice and you will see the following graph: