PC 9.5 Check In

Convert the polar coordinates to rectangular form

• (1, 1)
• (1, -1) 
• (-1, 0)
• (-1, -1)

Convert the polar coordinates to rectangular form

• ( -3, 3)
• (3, 3√3)
• (-3, 3√3)
• (3, -3√3)

Find the polar coordinates of the rectangular point. (-3,0)

• (3,π)
• (3,0)
• (3,π/2)
• (3,-3π/2)

Find the polar coordinates of the rectangular point. (0,3)

• (3,π)
• (3,0)
• (3,π/2)
• (3,-3π/2)

• r² = 81

• r = 3

• r = 4.5

• r sin θ = 9

• r = cot θ csc θ

• r = tan θ csc θ

• r = tan θ sec θ

• r = 0

Which point represents (3, 3π/4)

• F
• E
• B
• A

Which point represents the polar coordinate
(-4, -2π/3)

• B
• F
• D
• A

Converting between rectangular and polar coordinates:

x = ?

• rcosθ

• rsinθ

• x² + y²

• y/x, x ≠ 0

Converting between rectangular and polar coordinates:

y = ?

• rcosθ

• rsinθ

• x² + y²

• y/x, x ≠ 0