The answer is : 5625 pi square miles
Or
If decimal : 17,671.46 square mile
Any doubts
Explaining in pic
Answer:
Step-by-step explanation:
The vertex is halfway between focus and directrix, at (0,0).
The equation has the form y = ax².
Focal length p = distance between focus and vertex = 1
p = 1/|4a|
1 = 1/|4a|
|a| = ¼
The focus lies below the vertex, so the parabola opens downwards and a<0.
y = -¼x²
Answer:
c
Step-by-step explanation:
the horizontal line is not on any number of the x axis