At 3:00 the temperature in Alaska began dropping at a constant rate. The equation y = –5x – 10 can be used to represent this situation, where y is the temperature below zero and x is the time in hours the temperature has been falling. Which statement best describes the temperature at 3:00, given this situation?

A. From a starting temperature of 10 degrees below zero, the temperature is rising 5 degrees per hour.

B. From a starting temperature of 10 degrees below zero, the temperature is falling 5 degrees per hour.

C. From a starting temperature of 5 degrees below zero, the temperature is rising 10 degrees per hour.

D. From a starting temperature of 5 degrees below zero, the temperature is falling 10 degrees per hour.