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OpenStudy (anonymous):
Find the vertex of f(x)= -x^2-6x
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OpenStudy (anonymous):
\[-\frac{b}{2a}\] is the first coordinate
OpenStudy (anonymous):
\[-\frac{-6}{2\times (-1)}=-3\]
OpenStudy (anonymous):
Does this go for everytime I want to find the Vertex?
sam (.sam.):
yes, you can use completing the square too
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