Domain Range 270Fbc
1. Given function: $f(x) = x^2 + 6x + 5$
2. Domain: $(-\infty, \infty)$
3. Vertex $x$-coordinate: $h = -\frac{6}{2 \times 1} = -3$
4. Vertex $y$-coordinate: $k = (-3)^2 + 6(-3) + 5 = 9 - 18 + 5 = -4$
5. Range: $[-4, \infty)$
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