Section 10.3 Polar Coordinates Video Quiz

What are the two values used in polar coordinates?

• A and B

• R and Theta

• M and N

• X and Y

How do you plot a point with polar coordinates (4, Pi/6)?

• Move 4 units along the line at 30 degrees from the origin

• Move 4 units along the y-axis and then 30 degrees up

• Move 4 units along the x-axis and then 30 degrees up

• Move 4 units along the line at 60 degrees from the origin

Why are the points (-3, Pi/2) and (3, -Pi/2) the same?

• They are both on the x-axis

• They are both 3 units away from the origin but in opposite directions

• They are both on the y-axis

• They are both 3 units away from the origin in the same direction

What is the formula to convert polar coordinates to rectangular coordinates?

• X = R sin Theta, Y = R cos Theta

• X = R cos Theta, Y = R sin Theta

• X = Theta sin R, Y = Theta cos R

• X = Theta cos R, Y = Theta sin R

How do you convert the rectangular coordinate (4, 2) to polar form?

• R = sqrt(16), Theta = arctan(1/2)

• R = sqrt(20), Theta = arctan(1/2)

• R = sqrt(16), Theta = arctan(2/4)

• R = sqrt(20), Theta = arctan(2/4)

What is the polar form of the equation x^2 + y^2 = 4?

• R = 4

• R^2 = 4

• R = 2

• R^2 = 2

How do you convert the polar equation R = 4/sin(Theta) to rectangular form?

• Y = 4

• X = 4

• Y = 4/sin(Theta)

• X = 4/sin(Theta)

What is the graph of R = 3 cos(Theta)?

• A circle with radius 3

• A line parallel to the y-axis

• A line passing through the origin

• A circle with radius 1.5

What does the graph of R < 4 represent?

• A circle with radius 4

• A filled circle with radius 4

• A line with radius 4

• A filled circle with radius 2

What is the polar coordinate of the point (2, -Pi/5)?

• (1.618, -1.176)

• (2, Pi/5)

• (2, -Pi/5)

• (1.618, 1.176)