Exam 9: Topics in Analytic Geometry

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Use the discriminant to classify the graph; then use the quadratic formula to solve for yy . 3x223xy+y2183x+30y+36=03 x ^ { 2 } - 2 \sqrt { 3 } x y + y ^ { 2 } - 18 \sqrt { 3 } x + 30 y + 36 = 0

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C

Find the vertex and focus of the parabola. x28y=0x ^ { 2 } - 8 y = 0

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D

Match the graph with its equation Match the graph with its equation

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B

Find the standard form of the equation of the ellipse with the given characteristics. vertices: (4,6),(4,10)( 4 , - 6 ) , ( 4,10 ) \quad minor axis of length: 4

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Find three additional polar representations of the point (5,π3)\left( 5 , - \frac { \pi } { 3 } \right) , given in polar coordinates, using 2π<θ<2π- 2 \pi < \theta < 2 \pi .

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Find the standard form of the parabola with the given characteristics. Find the standard form of the parabola with the given characteristics.

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Find three additional polar representations of the point (5,π2)\left( 5 , - \frac { \pi } { 2 } \right) , given in polar coordinates, using 2π<θ<2π- 2 \pi < \theta < 2 \pi .

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Find the yy -intercepts of the graph of the circle below. (x5)2+(y+2)2=36( x - 5 ) ^ { 2 } + ( y + 2 ) ^ { 2 } = 36

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Find the standard form of the equation of the hyperbola with the given characteristics. foci: (±5,0)( \pm 5,0 ) asymptotes: y=±3xy = \pm 3 x

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Match the graph with its equation. Match the graph with its equation.

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Sketch the curve represented by the following parametric equations. Indicate the orientation of the curve. x=et,y=e2tx = e ^ { t } , y = e ^ { - 2 t }

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Find the vertex and focus of the parabola below. y2+10y8x+30=0y ^ { 2 } + 10 y - 8 x + 30 = 0

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Which set of parametric equations represents the following line or conic? Use x=h+asecθx = h + a \sec \theta and y=k+btanθy = k + b \tan \theta . Hyperbola: vertices (-5,7),(-3,7) foci (-8,7),(0,7)

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Test the graph of the following equation for symmetry with respect to θ=π2\theta = \frac { \pi } { 2 } , the polar axis, and the pole. r=22sin(4θ)r = 2 - 2 \sin ( 4 \theta )

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Which answer is a rectangular form of the given polar equation? r=58+sinθr = \frac { 5 } { 8 + \sin \theta }

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Use a graphing utility to graph the polar equation. Describe the resulting graph. r=4cos(7θ2)r = 4 \cos ( 7 \theta - 2 )

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Classify the graph of the equation as a circle, a parabola, an ellipse, or a hyperbola. 7x2+7y27x+9y2=07 x ^ { 2 } + 7 y ^ { 2 } - 7 x + 9 y - 2 = 0

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Find the standard form of the parabola with the given characteristic and vertex at the origin. vertical axis and passes through point (10,10)( 10 , - 10 )

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Classify the graph of the equation below as a circle, a parabola, an ellipse, or a hyperbola. 3y2+19x2+y115=03 y ^ { 2 } + 19 x ^ { 2 } + y - 115 = 0

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Find the standard form of the equation of the following hyperbola. 10x26y2=6010 x ^ { 2 } - 6 y ^ { 2 } = 60

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