Answer: A
Explanation:
The slope which is also known as gradient can be Mathematically defined as change in dependent variable divide by the change in independent variable.
Slope can rate of increase when it is positive. And rate of decrease when it is negative.
Since the slope of the line through the points is 2. Which is positive, the correct option that describes how the slope relates to the height of the water in the pool is therefore;
The height of the water increases 2 inches per minute. Which is option A