Answer:
The slope is -0.25. This means that the power reduces by 0.25 percent per hour
Explanation:
Given

Required
Identify and interpret the slope
An equation has a general form:

Where

Compare
to

We have:

Divide both sides by x



Because the result of the above calculation is negative, it means that the function reduces
The given function measures the percentage of power by hour.
So, the power reduces by 0.25% per hour