1. Parabola's equation is y = a(x + b)^2 + c, where (b, c) is the vertex.
2. We have y = a(x - 3)^2 + 1
3. Take everything to the left side:
-a(x - 3)^2 + y - 1 = 0
That's the standard equation. Hope this helps! :)
1 km = 1000m
so 4 km = 4(1000) = 4000 m
so Kali runs 4000 m per day
4000/400 = 10 laps per day
for 3 days = 3(10) = 30 laps for 3 days
The answer is A just trust me
