Given:
Focus = (1,0)
Directrix=y=4
To determine the equation of the parabola, we first find the middle distance between the focus and the directrix:
Middle distance= 4/2=2
Based on the given middle distance, the vertex would be:

Next, we use the formula:

where:
h=1
k=2
p=distance between the focus and vertex=2
So,
