Consider the parabola given by the equation: f(x)=2x^2+12-9 find the following for this parabola: a) the vertex b) the vertical intercept is the point

Consider the parabola given by the equation:
f(x)=2x^2+12-9
find the following for this parabola:
a) the vertex
b) the vertical intercept is the point
c) find the coordinates of the two x-intercept of the parabola and write them as a list, separated by commas