Question

f(x)=(x+4)^2 -2

Whats the axis of symmetry
is the domain (-5.5,0) (-2.5,0)?
and is the range [-2, infinity) ?

Answer 1

The vertex is (-4,-2) The aos goes through the vertex and is a vertical line so its equation is x = -4

Answer 2

The domain is all real numbers since the x can be anything at all.

Answer 3

Since this parabola is concave upward and it's low point (vertex) is (-4,-2) the range is all real numbers greater than or equal to -2.

Answer 4

so i have the range correct then?