Vertex form: y = a(x - h)^2 + k, where (h, k) is the vertex
y = x^2 + 4x - 5
y = (x^2 + 4x) - 5
y = (x^2 + 4x + 4) - 5 - 4
y = (x + 2)^2 - 9
The vertex of the graph is point (-2, -9).
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Vertex form: y = a(x - h)^2 + k, where (h, k) is the vertex
y = x^2 + 4x - 5
y = (x^2 + 4x) - 5
y = (x^2 + 4x + 4) - 5 - 4
y = (x + 2)^2 - 9
The vertex of the graph is point (-2, -9).