Answer:
A.) The submarine's depth increased at a rate of 3 meters per second.
Explanation:
If you look at the graph, every second the depth increases by 3 meters.
Notice on the y axis, the line pointing up proves that the depth is increasing.
We know that:
- the line moves at a constant rate
- the depth is increasing
- every second, the submarines depth increases by 3 meters
- due it increasing 3 meters per second, we can confirm the answer is A.
A.) The submarine's depth increased at a rate of 3 meters per second.