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8 December, 13:01

5. Write x^2 + 8x = - 4y - 8 in standard form. Identify the vertex, focus, axis

of symmetry, and directrix.

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Answers (1)
  1. 8 December, 13:07
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    The answer to your question is:

    Step-by-step explanation:

    Data

    x² + 8x = - 4y - 8

    x² + 8x + 16 = - 4y - 8 + 16

    x² + 8x + 16 = - 4y + 8

    (x + 4) ² = - 4 (y - 2)

    (x + 4) ² = 4 (-1) (y - 2)

    Vertex = (-4, 2)

    p = 1

    Focus = (-4, 1)

    Axis of symmetry x = - 4

    Directrix y = 3
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