a young girl standing on a cliff is throwing stones up into the air so that they land in the ocean below. The height h in meters of each stone above the ocean is realted to the time t in seconds after it has been thrown by the function h=-2t^2+2t+40. What is the maximum height reached by each stone?
A. 40.5m
B. 5m
C. 0.5m
D. 40 m
PLEASE HELP ME IM GONNA FAIL THIS TEST!!!!