Answer:
The slope is the rate at which water fills the pool.
Step-by-step explanation:
Another term for slope is "rate of change." It describes the change in the dependent variable as the independent variable increases.
We are told the slope is 2; this means that the dependent variable rises 2 for every change in the independent variable.
In the situation of filling a pool with water, the measurements we would have would be the amount of water in the pool to begin with; the amount we end up with in the pool; and the rate at which the water level changes. The only of these 3 that is a rate is the rate at which the water level changes; this must be the slope.
