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OpenStudy (anonymous):
What are the vertex and the axis of symmetry of the equation? y = –2x2 + 8x – 18
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OpenStudy (mertsj):
1. Find the x-coordinate of the vertex using x=-b/2a 2. Replace x with that number to find the y coordinate of the vertex 3. Since the aos is a vertical line that contains the vertex, the equation in #1 will be the equation of the aos.
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