Question

HELP ASAP
The graph shows the temperature of a room, in degrees Fahrenheit, over time, t, in minutes.

For which values of t (time) is the temperature increasing?

Choose all answers that are correct.



A.
from t = 0 to t = 20

B.
from t = 20 to t = 40

C.
from t = 40 to t = 50

D.
from t = 50 to t = 70

E.
from t = 70 to t = 80