A. Is the answer of this question
Answer: 
<u>Step-by-step explanation:</u>
The vertex form of a parabola is: y = a(x - h)² + k where
- (h, k) is the vertex
NOTE: p is the distance from the vertex to the focus
The vertex (h, k) is (2, -3)

Insert those values into the vertex formula to get:

Answer:
6
Step-by-step explanation:
Answer:
1.The radius to circumference formula is: C = 2πr.
2.The formula for radius to area is: A = πr2.
3. If you need to go from radius to diameter, multiply radius times 2 : d = 2r.
Step-by-step explanation: