please help!!! need answers tonight !!! extremely overweight elephant at the zoo is put on a diet, and the elephant begins losing weight at a constant rate per week. After 4 weeks on the diet, the elephant weighs 15,250 pounds. After 11 weeks on the diet, the ele- phant weighs 13,353 pounds. The zookeepers want to make a graph representing the elephant's weight over time. What would be the slope of the line they graph?