Exploring Polar Coordinates and Their Conversions

This video provides an introduction to polar coordinates, explaining their differences from rectangular coordinates. It covers how to plot polar coordinates with both positive and negative radius values and demonstrates methods to find equivalent polar coordinates with different r and theta values. Additionally, the video explains how to convert between polar and rectangular coordinate systems.

What are the components of polar coordinates?

• r and x

• theta and x

• r and theta

• x and y

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CCSS.HSN.CN.B.4

How is the angle theta measured in polar coordinates?

• From the negative x-axis clockwise

• From the negative y-axis clockwise

• From the positive y-axis counter-clockwise

• From the positive x-axis counter-clockwise

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CCSS.HSN.CN.B.4

What happens to the plot of a point in polar coordinates if the radius is negative?

• It is plotted in the opposite quadrant

• It remains in the same position

• No point is plotted

• It is reflected across the origin

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CCSS.HSN.CN.B.4

How do you convert 3 pi over 4 radians to degrees?

• 180 degrees

• 135 degrees

• 120 degrees

• 150 degrees

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CCSS.HSF.TF.A.1

What are the possible polar coordinates for a point with initial coordinates (2, 30 degrees)?

• (2, -330 degrees), (-2, 210 degrees), (-2, -150 degrees)

• (2, -30 degrees), (-2, 150 degrees), (-2, -210 degrees)

• (2, 330 degrees), (-2, 150 degrees), (-2, -210 degrees)

• (2, 30 degrees), (-2, 210 degrees), (-2, -330 degrees)

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CCSS.HSN.CN.B.4

How do you convert polar coordinates (4, 60 degrees) to rectangular coordinates?

• (4, 4 root 3)

• (2 root 3, 2)

• (4 root 3, 4)

• (2, 2 root 3)

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CCSS.HSN.CN.B.4

What is the rectangular coordinate x when r = 6 and theta = 5 pi over 6?

• -3

• 3

• 3 root 3

• -3 root 3

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CCSS.HSN.CN.B.4

How is the radius calculated from rectangular coordinates (2, -4)?

• 4 root 5

• 4 root 2

• 2 root 4

• 2 root 5

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CCSS.HSN.CN.B.4

What is the polar coordinate angle for the point (-5, 5 root 3) in quadrant II?

• 30 degrees

• 150 degrees

• 60 degrees

• 120 degrees

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CCSS.HSN.CN.B.4

What is the value of y in rectangular coordinates when r = 4 and theta = 60 degrees?

• 4 root 2

• 2 root 2

• 4 root 3

• 2 root 3

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CCSS.HSN.CN.B.4