2_PolarII - Polar Graphing Graph inequalities ex. 2 , 3 2 r...

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Polar Graphing Graph inequalities ex. θ= 2 π 3 , - 2 r ex. 0 ≤π , r = 1
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ex. r = 3 Circle with radius 3 and center at origin. The equation for a circle with radius a and center at the origin is r = a . ex. θ= π 3 The equation of a line through the origin is # .
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Recall x 2 + y 2 = r 2 x = r cos θ y = r sin tan θ= y x Polar to Cartesian ex. r = 3 ex. π 3 ex. r = - 6 cos
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ex. r = 2c os θ
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Cartesian to Polar ex. y = x ex. x 2 - y 2 = 1
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Polar to Parametric ex. r = 3 ex. r = - 6 cos θ
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Do: 1. Find the Cartesian equation for 2 r 2 co s θ s in θ= 1 . 2. Find the polar equation for x 2 + y - 4 (29 2 = 16 . (Hint: Multiply it out first.) 3. Find parametric equations for r .
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More graphing. ex. r = sin θ Find values of sine for θ= 0, π
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2_PolarII - Polar Graphing Graph inequalities ex. 2 , 3 2 r...

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