Name the points on the unit circle, x^2 + y^2 = 1, located by the wrapping function W for each of the following:
1. W(π)
2. W(π/2)
3. W(-3π/2)
4. W(-π)
5. W(-π/2)
6. W(5π)
7. W(-2π)
8. W(-π/4)
9. W(7π/2)
10. W(-25π/6)

How would you find a point on the unit circle for a negative radian?