Please help me! its pre calc

Step-by-step explanation:

y=x²+6x+5

=(x²+6x+(6/2)²)-(6/2)²+5

=(x+3)²-9+5

=(x+3)²-4

The axis of symmetry is x+3=0

or x=-3

when x=-3,f(x)=-4

vertex is (-3,-4)

Domain :-∞<x<∞

or (-∞,∞)

Range:[-4,∞)

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

i believe the answer is the polygon, heptagon.