Question

The graph shows a hot air balloon’s height, in feet, over time, in minutes.

For which values of t (time) does the hot air balloon remain at a height of 500 ft?



A.
from t = 0 to t = 10

B.
from t = 10 to t = 25

C.
from t = 25 to t = 35

D.
from t = 45 to t = 60