Question

.

Answer 1

The focal distance is also the distance from the vertex to the directrix. Since that distance in this drawing is 1, what is the distance from the vertex to the vertex? It is this distance in the opposite direction.

Answer 2

Since the directrix is y = 1, the focus is (0,1)

Answer 3

the focus is 1 unit above the vertex on the line x = 0

Answer 4

so it is A?

Answer 5

Yes.