Polar and Cartesian Coordinates

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

Convert from polar to rectangular coordinates:

• ( (√3)/2, 1/2 )

• ( -(√3)/2, 1/2 )

• ( -1/2, (√3)/2 )

• ( 1/2, (√3)/2 )

Convert the rectangular coordinates to polar form

• (√2 , 7π/4)

• (2 , 3π/4)

• (4 , π/4)

• (4 , 5π/4)

Convert the polar coordinates to rectangular form

• (1, 1)

• (1, -1) 

• (-1, 0)

• (-1, -1)

Find the rectangular coordinates of each polar point. (4, 3π/2)

• (4,4)

• (4,0)

• (0,-4)

• (0,1)

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