How do you rewrite this quadratic function in standard form and find the vertex:

y=4x^2+5x-7

Is there a minimum or maximum value to this quadratic function? How do you find the value and the axis of symmetry?

y=(1/3)x^2-4x+9

How do you rewrite this quadratic function in standard form and find the vertex. Is there a minimum or maximum value to this quadratic function? How do you find the value and the axis of symmetry? How do you determine the domain and range of this quadratic function?

f(x)=(-1/2)x^2+4x-2

Using the vertex (h, k) and a point on the graph (x, y), how do you find the general form of this equation of the quadratic function:

(h,k)=(-1,3),(x,y)=(-2,6)