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# Sec 9.2 (1) - Sullivan Algebra and Trigonometry Section 9.2...

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Sullivan Algebra and Trigonometry: Section 9.2 Polar Equations and Graphs Objectives of this Section Graph and Identify Polar Equations by Converting to Rectangular Coordinates Test Polar Equations for Symmetry Graph Polar Equations by Plotting Points

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An equation whose variables are polar coordinates is called a polar equation . The graph of a polar equation consists of all points whose polar coordinates satisfy the equation. 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345
Identify and graph the equation: r = 2 r = 2 r 2 4 = x y 2 2 4 + = Circle with center at the pole and radius 2. 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345 4 3 2 1 0

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Identify and graph the equation: = 3 θ π = 3 tan tan = 3 1 y x = 3 1 y x = 3 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345 4 3 2 1 0 = 3
r sin θ=- 2 θ 0

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Sec 9.2 (1) - Sullivan Algebra and Trigonometry Section 9.2...

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