Final answer:
The correct equation representing the water level in Lake Travis as it decreases by 15 feet per day starting from 200 feet is A) y = 200 - 15x.
Step-by-step explanation:
The question concerns the rate at which the water level in Lake Travis decreases due to water being released and asks which equation represents this situation. Given that the lake has a starting depth of 200 feet above sea level and releases water at a rate of 15 feet per day, we would expect the height of the water to decrease linearly over time.The main answer is represented by equation A) y = 200 - 15x, where y represents the depth of the lake in feet above sea level and x represents the number of days since the release of water began.In conclusion, this equation allows us to understand how the water level changes over time given a constant rate of release. It ensures that for each day that passes, the depth of the lake decreases by 15 feet from the starting point of 200 feet.