Identify a, h, and k after completing the square
Rewrite \(f(x)=-x^{2} - 10x - 18\) as \(a(x-h)^{2}+k\), then state \(a\), \(h\), \(k\), and the vertex.
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Worked practice: quadratic features
Use the vertex-form information to state the graph features in order.