1. Identify the vertex (h,k) = (2,0).
2. Identify the focus (h,k + p) = (2,4).
3. Determine the value of p: since the focus is $4$ units above the vertex, p = 4.
4. Substitute the values into the standard form of a parabola (x - h)^2 = 4p(y - k):
(x - 2)^2 = 4 \cdot 4 \cdot (y - 0)
5. Simplify the equation:
(x - 2)^2 = 16y
Thus, the equation of the parabola is
(x - 2)^2 = 16y .