Write the quadratic function f(x) =-2x^2 -8x - 10 in its vertex form and find the vertex of the parabola.
A quadratic function can be expressed in the form of
f(x) = a(x - h)2 + k,
in which h and k represents the coordinate of the vertex of the graph of the quadratic function.
f(x) =-2x^2 -8x - 10
The vertex of the parabola is (-2,-2)