Question

give me equation of parabola.

Answer 1

The general form of a parabola equation is the one you're used to , y= ax2 + bx + c
unless the quadratic is "sideways", in which case the equation will look something like ay2 + by + c .

Answer 2

The vertex form of a parabola's equation is generally expressed as: y = a(x-h)2+k