1. general formula: y = ax 2+bx+c
2. Vertex: y = a (x-h) 2+k
Where (h.k) is the vertex of the parabola.
3. Intersection point
y=a(x-x 1)(x-x2)
Where x 1, x2 is the abscissa of two intersections of parabola and X axis.
I have a bachelor's degree in Japanese and a bachelor's degree in literature, and which civil service exams correspond to which major