Plot the given polar coordinates on a polar coordinate system. 

(9, 90°)

Which of the following polar coordinates represents the same location as (-6, 2π/3)?

I. (-6, 4π/3)

II. (-6, 11π/3)

III. (6, 11π/3)

IV. (6, -π/3)

Transform the given polar equation into a rectangular equation. Use the resulting equation to draw the graph.

r = 8 cos θ + 10 sin θ

Convert the following polar coordinates to rectangular coordinates:

(13.4, 5.3)

Convert the following rectangular coordinates to polar coordinates. Write the angle in radians:

(-10, -10√3)