please help with my homework resolve and give every details.

1.A (5 points) Find the quadratic function whose graph has vertex at (1,-4) and passes through the point(2,0) 2.E (4 points) A rocket is launched at t = 0 seconds. Its height, in meters above sea-level, is given by the equation h =-4.9t2+ 325t+227 A. Find the time it takes the rocket to reach the maximum height? (Round answer to 2 decimal places.) B. What is the maximum height attained by the rocket? (Round to the nearest whole number)