Question

The owners of a recreation area filled a small pond with water in 120 minutes. the pond already had some water at the beginning. The graph shows the amount of water ( in liters) in the pond versus time (in minutes).

Answer 1

D =[0, 120] and R= [600, 1500]

1) Given that graph, we can write the Domain or the set of entries for this function as:

D =[0, 120]

Since in this situation, the entries are the amount of time, up to filling the pond.

2) As the Range, the set of outputs, we can write the following about it

R= [600, 1500]

Because that's how much water the pond starts with up to 1500 liter (its fullest capacity). In this case, the range is given in liters.

3) Hence, the answer is D =[0, 120] and R= [600, 1500]