Analyzing Polar Graphs

Match the correct polar equation with the following graph:

• r=2cosθ
• rcosθ=2
• r=2sinθ
• r=2

Point B has polar coordinates (4,270⁰).  Which of these is NOT point B?

• (4,-90⁰)
• (4, -270⁰)
• (-4, 90⁰)
• (-4, -270⁰)

Point E has polar coordinates
(-3, 180⁰).

• True
• False

Which point represents (3, 3π/4)

• F
• E
• B
• A

Which equation represents the polar graph?

• r = sin 4θ
• r = 6 sin 2θ
• r = 6 cos 4θ
• r = cos 4θ

Write the equation of the polar graph in polar form.

• r = 3cos(θ)
• r = -3cos(θ)
• r = 3sin(θ)
• r = -3sin(θ)

Choose a correct equation for the red circle.

• r = -3
• r = -3sinΘ
• r = -3cosΘ
• x² + y² = 3

Choose a correct equation for the blue circle.

• r = 2
• r = 4
• r = 2sinΘ
• x² + y² = 2

Choose a correct equation for this rose curve.

• r = sin(7θ)

• r = 7sin(2θ)

• r = 2sin(7θ)

• r = 2sin(14θ)

What is the function of the graph?

• r=3
• r=3sinΘ
• r=3sinΘ+3cosΘ
• r=3cosΘ