Question 43486
{{{y = 2(x + 3)^2 - 5}}}
This is a vertical parabola. Since the {{{a}}} value is positive, the parabola opens upward.
Vertex: (h,k) for form: {{{y = a(x - h)^2 + k}}}
Vertex: (-3,-5)
For the axis of symmetry, look at the x-value in the vertex.
Axis of Symmetry: {{{x = -3}}}
{{{ graph( 600, 600, -10, 10, -10, 10, 2x^2 + 12x + 13) }}}