Equations in the form \(y = a(x - h)^2 - k\)

Express \(y = 2x^2 + 4x - 16\) in the form \(y = a(x - h)^2 - k\)
Hence, state

1. its turning point and whether it is a maximum or a minimum point
2. the equation of the line of symmetry

Sketch the graph of the equation showing clearly its turning point and cutting point(s)