A hot tub is draining, and the water level is decreasing at a constant rate. After 9.3 minutes, the tub contains 401.92 gallons. After 15.8 minutes, the tub contains 235. 52 gallons.
1. Calculate the y-intercept by using the calculated slope and the ordered pair that includes 15.8 minutes.
2. What does the y-intercept represent in this situation
3. Find the slope by substituting the coordinate values of the order formula.
4. What does the slope represent in this situation?
