PRECAL QUIZ 5

Convert the polar coordinates to rectangular form  $\left(6,\ \frac{2\pi}{3}\right)$  

• ( -3, 3)

• (3, 3√3)

• (-3, 3√3)

• (3, -3√3)

Covert the rectangular equation to polar form  $x^2+y^2=9$  

• r² = 81

• r = 3

• r = 4.5

• r sin θ = 9

Convert the rectangular coordinates to polar form

• (√2 , 7π/4)
• (2 , 3π/4)
• (4 , π/4)
• (4 , 5π/4)

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

Which point represents (3, 3π/4)

• F
• E
• B
• A

Write the equation for this graph in polar form.

• r = -5sinΘ

• r = -5cosΘ

• r = 5sinΘ

• r = 5cosΘ

Choose the correct equation.

• r = 3 + 2 cosθ
• r = 2 + 3 cosθ
• r = 2 + 2cosθ
• r = 3cosθ

Given points are A(3;2) and B(5;-1). What are the coordinates of the AB vector?

• (-2; 3)

• (-2; -3)

• (2; -3)

• (2; 3)

What is the magnitude AB(6,8) vector?

• 10

• 11

• 12

• 6,21

• 84.32

• 62.60

• 1.49

• 85.60