Find the vertex of the parabola y = 4x^2 - 6x + 15.
The 'x' coordinate of the vertex will be found by - b / 2a a = 4 b = -6 c = 15
plug this value into the equation to find the 'y' coordinate.....
you already know that a = 4, b = -6, c = 15
all you have to do from here is plug in the values!