Question

What is K in vertex form?

Answer 1

Parabola: A plane curve produced by a point moving in such a way that its distance from a fixed point equals its distance from a fixed-line.

The coordinate of the vertex of a parabola is $(h,k)$

From the quadratic $a{x}^2+bx+c=y$, we get the value of $h=-\frac{b}{2a}$

The term $k$ in the vertical form represents the vertical shift in the distance from the graph which is shifted from X-axis, where $y$ is zero.