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Math Help - Vertexing question

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    Vertexing question

    Find/sketch vertex of the parabola y = x^2 + x 30 (using -b/2a method)
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  2. #2
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    Quote Originally Posted by brad View Post
    Find/sketch vertex of the parabola y = x^2 + x – 30 (using -b/2a method)
    Well, the axis of symmetry is the line x = -\frac{b}{2a} = -\frac{1}{2 \cdot 1} = -\frac{1}{2}, so where does this line intersect your parabola?

    -Dan
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