Exam 10: Conic Sections and Analytic Geometry

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Additional Concepts - y=x2+2x+4y = x ^ { 2 } + 2 x + 4

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Find two sets of parametric equations for the given rectangular equation. - y=x24y = x ^ { 2 } - 4

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Solve Applied Problems Involving Hyperbolas -A satellite following the hyperbolic path shown in the picture turns rapidly at (0,6)( 0,6 ) and then moves closer and closer to the line y=92xy = \frac { 9 } { 2 } x as it gets farther from the tracking station at the origin. Find the equation that describes the path of the satellite if the center of the hyperbola is at (0,0)( 0,0 ) .  Solve Applied Problems Involving Hyperbolas -A satellite following the hyperbolic path shown in the picture turns rapidly at  ( 0,6 )  and then moves closer and closer to the line  y = \frac { 9 } { 2 } x  as it gets farther from the tracking station at the origin. Find the equation that describes the path of the satellite if the center of the hyperbola is at  ( 0,0 ) .

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Solve Applied Problems Involving Parabolas -A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 6 feet and a depth of 6 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. The receiver should be placed at the focus (0,p)( 0 , \mathrm { p } ) . The value of p\mathrm { p } is given by the equation a=14p\mathrm { a } = \frac { 1 } { 4 \mathrm { p } } . How far from the base of the dish should the receiver be placed?.  Solve Applied Problems Involving Parabolas -A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 6 feet and a depth of 6 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. The receiver should be placed at the focus  ( 0 , \mathrm { p } ) . The value of  \mathrm { p }  is given by the equation  \mathrm { a } = \frac { 1 } { 4 \mathrm { p } } . How far from the base of the dish should the receiver be placed?.

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Additional Concepts - y2+6yx+11=0y ^ { 2 } + 6 y - x + 11 = 0

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Eliminate the Parameter -A hyperbola: x=1+4sect,y=5+5x = 1 + 4 \sec t , y = 5 + 5 tan tt

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Convert the equation to the standard form for a hyperbola by completing the square on x and y. - 9y24x2+18y+16x43=09 y ^ { 2 } - 4 x ^ { 2 } + 18 y + 16 x - 43 = 0

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Find the standard form of the equation of the ellipse satisfying the given conditions. -Endpoints of major axis: (7,4)( - 7,4 ) and (9,4)( 9,4 ) ; endpoints of minor axis: (1,1)( 1 , - 1 ) and (1,9)( 1,9 )

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Use the rotated system to graph the equation. - 7x2+2xy+7y2=247 x^{2}+2 x y+7 y^{2}=24  Use the rotated system to graph the equation. - 7 x^{2}+2 x y+7 y^{2}=24

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Graph Ellipses Not Centered at the Origin - (x+2)29+(y2)216=1\frac { ( x + 2 ) ^ { 2 } } { 9 } + \frac { ( y - 2 ) ^ { 2 } } { 16 } = 1  Graph Ellipses Not Centered at the Origin - \frac { ( x + 2 ) ^ { 2 } } { 9 } + \frac { ( y - 2 ) ^ { 2 } } { 16 } = 1

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Solve Applied Problems Involving Hyperbolas -Two recording devices are set 3200 feet apart, with the device at point A to the west of the device at point B. At a point on a line between the devices, 400 feet from point B, a small amount of explosive is detonated. The recording devices record the time the sound reaches each one. How far directly north of site B should a second explosion be done so that the measured time difference recorded by the devices is the same as that for the first detonation?

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The Parabola 1 Graph Parabolas with Vertices at the Origin - x2=28yx ^ { 2 } = - 28 y

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Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term. - 10x24xy+6y28x+8y=010 x ^ { 2 } - 4 x y + 6 y ^ { 2 } - 8 x + 8 y = 0

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Additional Concepts - 24xy7y2+36=0;24 x y - 7 y ^ { 2 } + 36 = 0 ; Find the equations of the asymptotes.

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

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Find the standard form of the equation of the ellipse satisfying the given conditions. -Major axis vertical with length 12;12 ; length of minor axis =6;= 6 ; center (0,0)( 0,0 )

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Use point plotting to graph the plane curve described by the given parametric equations. - x=2t1,y=t2+6;4t4x=2 t-1, y=t^{2}+6 ;-4 \leq t \leq 4  Use point plotting to graph the plane curve described by the given parametric equations. - x=2 t-1, y=t^{2}+6 ;-4 \leq t \leq 4

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Graph the parabola. - y2=12xy^{2}=12 x  Graph the parabola. - y^{2}=12 x

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Match the equation to the graph. - x2=9yx ^ { 2 } = 9 y

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Write the word or phrase that best completes each statement or answers the question. The parametric equations of four curves are given. Graph each of them, indicating the orientation. - :x=7t,y=7-7t;\leqt\leq :x=t,y=;\leqt\leq :x=-8,y=t-3;-4\leqt\leq4 :x=t-5,y=t+2;-4\leqt\leq7

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