1. The problem states that the total change in temperature over 4 hours is \(-28^\circ\text{F}\), and the change is the same each hour. 2. To find the hourly change, we need to divide the total change by the number of hours. 3. This gives us the equation for the hourly change: $$\text{Hourly change} = \frac{-28}{4}$$ 4. Simplifying, we get: $$\text{Hourly change} = -7^\circ\text{F}$$ 5. This means the temperature drops by 7 degrees Fahrenheit each hour for 4 hours. So, the temperature changes by \(-7^\circ\text{F}\) every hour. This is found by dividing the total change by the number of hours, which makes sense because the drop is steady and equal each hour.