Exam 10: Topics From Analytic Geometry

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Identify the conic as a circle or an ellipse then find the center. ​ x236+y225=1\frac { x ^ { 2 } } { 36 } + \frac { y ^ { 2 } } { 25 } = 1

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Ellipse
Center: (0,0)( 0,0 )

Identify the conic by writing the equation in standard form. ​ 4x2+9y2+16x90y+205=04 x ^ { 2 } + 9 y ^ { 2 } + 16 x - 90 y + 205 = 0

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(x+2)29+(y5)24=1\frac { ( x + 2 ) ^ { 2 } } { 9 } + \frac { ( y - 5 ) ^ { 2 } } { 4 } = 1 ; ellipse

Find a polar equation of the conic with its focus at the pole. ​ Conics Eccentricity Directrix Hyperbola e=32e = \frac { 3 } { 2 } x=4x = - 4

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r=823cosθr = \frac { 8 } { 2 - 3 \cos \theta }

Graph the hyperbola. ​ 9x225y2=2259 x ^ { 2 } - 25 y ^ { 2 } = 225

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Graph the hyperbola. ​ 9y29x2+72y+54x=189 y ^ { 2 } - 9 x ^ { 2 } + 72 y + 54 x = 18

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Find a polar equation of the conic with its focus at the pole. ​ Conics Vertex or vertices Parabola (5,π2)\left( 5 , - \frac { \pi } { 2 } \right)

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Select the polar equation of graph. ​ Select the polar equation of graph. ​   ​

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Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. ​ Passes through the point (3,14)\left( - 3 , \frac { 1 } { 4 } \right) ; vertical axis ​

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Describe the graph of the polar equation and find the corresponding rectangular equation. Select the correct graph. ​ r=5secθr = 5 \sec \theta

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A satellite in a 100-mile-high circular orbit around Earth has a velocity of approximately 17,500 miles per hour. If this velocity is multiplied by 2\sqrt { 2 } , the satellite will have the minimum velocity necessary to escape Earth's gravity and will follow a parabolic path with the center of Earth as the focus. (Hints: The radius of Earth is 4,000 miles.) ​  A satellite in a 100-mile-high circular orbit around Earth has a velocity of approximately 17,500 miles per hour. If this velocity is multiplied by  \sqrt { 2 }  , the satellite will have the minimum velocity necessary to escape Earth's gravity and will follow a parabolic path with the center of Earth as the focus. (Hints: The radius of Earth is 4,000 miles.) ​   Find the distance between the surface of the Earth and the satellite when  \theta = 40 ^ { \circ }  . ​ Find the distance between the surface of the Earth and the satellite when θ=40\theta = 40 ^ { \circ } . ​

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Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. ​ x=t+1x = t + 1 y=tt+1y = \frac { t } { t + 1 }

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Find the standard form of the equation of the ellipse with the given characteristics. ​ Foci: (0,0),(8,0)( 0,0 ) , ( 8,0 ) ; major axis of length 10. ​

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Select the correct graph of the following equations of the hyperbola and find the center of the hyperbola. ​ (y+4)2164(x2)2149=1\frac { ( y + 4 ) ^ { 2 } } { \frac { 1 } { 64 } } - \frac { ( x - 2 ) ^ { 2 } } { \frac { 1 } { 49 } } = 1

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Find a set of parametric equations for the rectangular equation. ​ t=3-x x=4y-3 ​

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Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. ​ Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. ​   ​

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