Exam 10: Conic Sections and Analytic Geometry

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Rotation of Axes 1 Identify Conics Without Completing the Square - 5x26y2+2x3y5=05 x ^ { 2 } - 6 y ^ { 2 } + 2 x - 3 y - 5 = 0

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Graph the Polar Equations of Conics - r=222cosθr = \frac { 2 } { 2 - 2 \cos \theta } \quad Identify the directrix and vertex.  Graph the Polar Equations of Conics - r = \frac { 2 } { 2 - 2 \cos \theta } \quad  Identify the directrix and vertex.

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Graph Parabolas with Vertices Not at the Origin - (y+1)2=12(x+2)( \mathrm { y } + 1 ) ^ { 2 } = - 12 ( \mathrm { x } + 2 )

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Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection. - x=(y+2-1 (x-2+(y+2=1  Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection. - \begin{array} { l }  x = ( y + 2 ) ^ { 2 } - 1 \\ ( x - 2 ) ^ { 2 } + ( y + 2 ) ^ { 2 } = 1 \end{array}

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Eliminate the Parameter - x=t3+1,y=t310;2t2\mathrm { x } = \mathrm { t } ^ { 3 } + 1 , \mathrm { y } = \mathrm { t } ^ { 3 } - 10 ; - 2 \leq \mathrm { t } \leq 2

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Identify Conics Without Rotating Axes - 3x27xy+3y24x4y+5=03 x ^ { 2 } - 7 x y + 3 y ^ { 2 } - 4 x - 4 y + 5 = 0

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Graph the ellipse and locate the foci. - x264+y236=1\frac { x ^ { 2 } } { 64 } + \frac { y ^ { 2 } } { 36 } = 1  Graph the ellipse and locate the foci. - \frac { x ^ { 2 } } { 64 } + \frac { y ^ { 2 } } { 36 } = 1

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Conic Sections in Polar Coordinates 1 Define Conics in Terms of a Focus and a Directrix - r=363sinθr = \frac { 3 } { 6 - 3 \sin \theta }

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Additional Concepts - x=(y+3)28x = - ( y + 3 ) ^ { 2 } - 8

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Use the rotated system to graph the equation. - x28xy+y2+25=0x^{2}-8 x y+y^{2}+25=0  Use the rotated system to graph the equation. - x^{2}-8 x y+y^{2}+25=0

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Eliminate the Parameter - x=2+sect,y=5+2tant;0<t<π2x = 2 + \sec t , y = 5 + 2 \tan t ; 0 < t < \frac { \pi } { 2 }

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Additional Concepts - x29y225=1\frac { x ^ { 2 } } { 9 } - \frac { y ^ { 2 } } { 25 } = 1  Additional Concepts - \frac { x ^ { 2 } } { 9 } - \frac { y ^ { 2 } } { 25 } = 1

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Solve Apps: Conic Sections in Polar Coordinates -Halley's comet has an elliptical orbit with the sun at one focus. Its orbit shown below is given approximately by r=10.821+0.891sinθ\mathrm { r } = \frac { 10.82 } { 1 + 0.891 \sin \theta } . In the formula, r\mathrm { r } is measured in astronomical units. (One astronomical unit is the average distance from Earth to the sun, approximately 93 million miles.) Find the distance from Halley's comet to the sun at its greatest distance from the sun. Round to the nearest hundredth of an astronomical unit and the nearest million miles.  Solve Apps: Conic Sections in Polar Coordinates -Halley's comet has an elliptical orbit with the sun at one focus. Its orbit shown below is given approximately by  \mathrm { r } = \frac { 10.82 } { 1 + 0.891 \sin \theta } . In the formula,  \mathrm { r }  is measured in astronomical units. (One astronomical unit is the average distance from Earth to the sun, approximately 93 million miles.) Find the distance from Halley's comet to the sun at its greatest distance from the sun. Round to the nearest hundredth of an astronomical unit and the nearest million miles.

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Additional Concepts - y29x236=1\frac { y ^ { 2 } } { 9 } - \frac { x ^ { 2 } } { 36 } = 1  Additional Concepts - \frac { y ^ { 2 } } { 9 } - \frac { x ^ { 2 } } { 36 } = 1

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Tech: Rotation of Axes -Tech: Rotation of Axes -

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Parametric Equations 1 Use Point Plotting to Graph Plane Curves Described by Parametric Equations - x=4+5cost,y=6+4sint;t=π2x = 4 + 5 \cos t , y = 6 + 4 \sin t ; t = \frac { \pi } { 2 }

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Graph the Polar Equations of Conics - r=22cosθr = \frac { 2 } { 2 - \cos \theta } \quad Identify the directrix and vertices.  Graph the Polar Equations of Conics - r = \frac { 2 } { 2 - \cos \theta } \quad  Identify the directrix and vertices.

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Write Equations of Rotated Conics in Standard Form - x2+xy+y23y6=0x^{2}+x y+y^{2}-3 y-6=0

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Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection. - x=-7 x=-7y  Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection. - \begin{array} { l }  x = y ^ { 2 } - 7 \\ x = y ^ { 2 } - 7 y \end{array}

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Graph the parabola with the given equation. - (x2)2=8(y+2)( x - 2 ) ^ { 2 } = - 8 ( y + 2 )  Graph the parabola with the given equation. - ( x - 2 ) ^ { 2 } = - 8 ( y + 2 )

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