Polar Coordinates Unit Test Review

• (5, 7π/4)

• (25, 7π/4)

• (10, 3π/4)

• (10, -7π/4)

Write the polar equation into a rectangular equation?
r=2sinΘ+2cosΘ

• x²+y²=2x+2y

• r=2x+2y

• r=x²+y²

• x²-y²=2x-2y

• √50 (cos π/2 + i sin π/2)

• 50 (cos π/4 + i sin π/4)

• √50 (cos 5π/4 + i sin 5π/4)

• √50 (cos π/4 + i sin π/4)

What is the function of the graph?

• r=3

• r=3sinΘ

• r=3sinΘ+3cosΘ

• r=3cosΘ

Find r
x=12
y=5

• 12

• 12.5

• 13

• 15

Find polar coordinates for the point:
(√3 , 1)

• (2, π/6)

• (-2, -π/6)

• (1,0)

• (4π,-2)

Match the point in polar coordinates with either A, B, C, or D on the graph.
(2, -11π/6)

• A

• B

• C

• D

Match the point in polar coordinates with either A, B, C, or D on the graph.
(2, 5π/6)

• A

• B

• C

• D

How do you write an ordered pair in polar coordinates?

• (X, Y)

• (θ, r)

• (r,θ)

• (Y_Y)

Convert from rectangular to polar coordinates. (-4, 4)

• (4√2, π/4)

• (4√2, 3π/4)

• (4√2, -π/4)

• (-4√2, -7π/4)