How do find the vertex and axis of symmetry, and intercepts for a quadratic equation #y= -2x^2#?
axis of symmetry:
General vertex form for a quadratic is
The equation is that of a standard parabola (opening downward)
so the axis of symmetry is a vertical line passing through the vertex
The y-intercept is the value of
The x-intercept(s) is/are the value of