<em>It will take 6 minutes to drain the pool.</em>
<h2>Explanation:</h2>As the problem states the height of the water in an above ground pool is 3ft. In other word:
- 3 ft is our starting point.
The pool needs to be drained at a Rate of Change of 1/2 inches per minutes. In other words:
- The rate of change is constant, so we'll have a line with slope -1/2.
Therefore, we can write an equation as:
To drain the pool implies that we don't have any water in the pool, in other words this is true if and only if:
So:
So, <em>it will take 6 minutes to drain the pool.</em>
<h2>Learn more:</h2>Average Rate of Change: brainly.com/question/14196399#
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