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OpenStudy (anonymous):
What is the vertex for the graph of y = −2x^2 + 8x − 13?
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OpenStudy (mertsj):
x=-b/2a is the x coordinate of the vertex. Find that number and then plug it into your equation to find the y coordinate of the vertex.
OpenStudy (anonymous):
i dont understand.
OpenStudy (mertsj):
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