Polar Coordinates Unit Test Review

Check all the correct answers. What are the polar coordinates for Point D?

Write the equation for this graph in polar form.

• r = -5sinΘ

• r = -5cosΘ

• r = 5sinΘ

• r = 5cosΘ

Which point represents (-4, 4π/3)

• F

• E

• B

• A

• 2

• 10

Express the complex number in polar form.
-2 + 5i

• 5.39 ( cos 1.95 + i sin 1.95)

• 5.39 ( cos 65.06 + i sin 65.06)

• 2.65 ( cos 1.95 - i sin 1.95 )

• 2.65 ( cos 65. 06 - i sin 65.06 )

What quadrant would the point in polar form land in?
4 ( cos π /3 + i sin π /3)

• Quadrant 4

• Quadrant 1

• Quadrant 2

• Quadrant 3

Convert from polar to rectangular coordinates:

• ( (√3)/2, 1/2 )

• ( -(√3)/2, 1/2 )

• ( -1/2, (√3)/2 )

• ( 1/2, (√3)/2 )

Convert from a polar to a rectangular equation:

• y = x

• y = - x

• y = 2x

• y = -2x

Convert from polar coordinates, (6, 5π/4) to rectangular coordinates.

• (6.0, 0.4)

• (-6.0, -0.4)

Convert from polar coordinates,  (5, 50°) to rectangular coordinates.

• (-1.3, -3.8)

• (3.2, 3.8)

• (4.8, -1.3)

• (3.8, 3.2)