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aliera95

  • one year ago

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  1. mathstudent55
    • one year ago
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    This is a parabola that opens up. Multiply out the right side using FOIL. Then write it in the form: \(f(x) = ax^2 + bx + c \) Then \(x = -\dfrac{b}{2a} \) gives you the equation of the axis of symmetry. The vertex is on the axis of symmetry, so if you plug in \(-\dfrac{b}{2a} \) for x in the equation of the parabola, you'll get the y coordinate of the vertex.

  2. aliera95
    • one year ago
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    (-1,-9) ?

  3. mathstudent55
    • one year ago
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    I have no way of checking since you removed rthe problem.

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