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anonymous

  • one year ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). A parabola is given by the equation y = x2 + 4x + 4. The vertex of the parabola is _. The focus of the parabola is _. The directrix of the parabola isgiven by the equation y = _. Note: Separate coordinates inside parentheses with a comma.

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  1. anonymous
    • one year ago
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    Hello, What you have is a quadratic equation. First let us obtain the vertex, to find the x-vertex it can be done by using: \[\dfrac{-b}{2a}\] After you get the x-vertex, you need the y-vertex to create the coordinate pair, you can obtain the y-vertex by subbing the new found x-vertex into your original equation. Tell me what you get so I can check it you understood that much so far, if not I can break it down into pieces.

  2. anonymous
    • one year ago
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    i got -4/2 @Algorithmic

  3. anonymous
    • one year ago
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    wait is the vertex (-2,0) focus -2 and the directrix -1/4? @Algorithmic

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