Answer:
The coefficient of x^2 is positive (here it is 1) so we have a minimum.
Rearrange it to the form (x-a)^2 + b:
(x+2)^2 - 4 - 5 = (x+2)^2-9
This means the minimum, or vertex, is at (-2,-9)
Parabolas are symmetrical horizontally, so the axis of symmetry is the vertical line at the minimum, which is x = -2
The domain is all numbers
The range is y >= -9
