Exam 7: Analytic Geometry

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Graph the ellipse and locate the foci. -Graph the ellipse and locate the foci. -

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Find an equation for the ellipse described. -Center at (0, 0); focus at (-4, 0); vertex at (5, 0)

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Solve the problem. -Two recording devices are set 3,200 feet apart, with the device at point A to the west of the device at pointB. At a point on a line between the devices, 300 feet from point B, a small amount of explosive isdetonated. The recording devices record the time the sound reaches each one. How far directly north ofsite B should a second explosion be done so that the measured time difference recorded by the devices isthe same as that for the first detonation?

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Find the center, foci, and vertices of the ellipse. -Find the center, foci, and vertices of the ellipse. -

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Find the vertex, focus, and directrix of the parabola. Graph the equation. -Find the vertex, focus, and directrix of the parabola. Graph the equation. -

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Find the center, foci, and vertices of the ellipse. -1 Find the center, foci, and vertices of the ellipse. -1   + 9(y + 3)2 = 144 + 9(y + 3)2 = 144

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Graph the ellipse and locate the foci. -Graph the ellipse and locate the foci. -

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Find the vertex, focus, and directrix of the parabola with the given equation. -Find the vertex, focus, and directrix of the parabola with the given equation. -

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Solve the problem. -An arch in the form of a semiellipse is 52 ft wide at the base and has a height of 20 ft. How wide is the archat a height of 12 ft above the base?

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Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola. -Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola. -

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Match the graph to its equation. -Match the graph to its equation. -

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Graph the equation. -Graph the equation. -

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Find the center, foci, and vertices of the ellipse. -Find the center, foci, and vertices of the ellipse. -

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Solve the problem. -A searchlight is shaped like a paraboloid of revolution. If the light source is located 5 feet from the basealong the axis of symmetry and the opening is 8 feet across, how deep should the searchlight be?

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Graph the equation. -Graph the equation. -

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Find an equation of the parabola described. -Focus at (0, 11); directrix the line y = -11

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Graph the hyperbola. -Graph the hyperbola. -

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Find an equation for the hyperbola described. -center at (1, 6); focus at (-6, 6); vertex at (0, 6)

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Graph the equation. -Graph the equation. -

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Find an equation for the parabola described. -Vertex at (7, -3); focus at (9, -3)

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