In Exercises 1–4, find the focus and directrix of each parabola with the given equation. Then match each equation to one of the graphs that are shown and labeled (a)–(d). x^2 = - 4y
8. Conic Sections
Parabolas
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Find the focus and directrix of the parabola with the given equation. Then graph the parabola.
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Find the focus and directrix of the parabola with the given equation. Then graph the parabola. y2 = - 8x
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Find the focus and directrix of the parabola with the given equation. Then graph the parabola. x2 = 12y
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Find the focus and directrix of the parabola with the given equation. Then graph the parabola. x2 = - 16y
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Find the focus and directrix of the parabola with the given equation. Then graph the parabola. y2 - 6x = 0
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (7, 0); Directrix: x = - 7
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (- 5, 0); Directrix: x = 5
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (0, 15); Directrix: y = - 15
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (0, - 25); Directrix: y = 25
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Find the standard form of the equation of each parabola satisfying the given conditions. Vertex: (2, - 3); Focus: (2, - 5)
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (3, 2); Directrix: x = - 1
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Find the standard form of the equation of each parabola satisfying the given conditions. Focus: (- 3, 4); Directrix: y = 2
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Find the vertex, focus, and directrix of each parabola with the given equation. Then match each equation to one of the graphs that are shown and labeled (a)–(d). (y - 1)2 = 4(x - 1)
a. b. c. d.
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Find the vertex, focus, and directrix of each parabola with the given equation. Then match each equation to one of the graphs that are shown and labeled (a)–(d). (x + 1)2 = - 4(y + 1)
a. b. c. d.
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