Answer:
y = -3(x + 1)² + 9
Step-by-step explanation:
y = a(x - h)² + k, where (h, k) is the vertex
The vertex of the quadratic function is (-1, 9)
The only equation listed that has a vertex at (-1, 9) is:
y = -3(x + 1)² + 9
It is going to be 6 hours and 15 mins
So if the number is less than 5, then round down to 0
if the number is 5 or more then round up to 10
4.25
5=5 so
4.2+0.10=4.3
