The table represents the relationship between the number of days, x, and the number of patients in a hospital showing flu symptoms. 100 18 13 Which statement is true? The number of patients showing flu symptoms decreases at a constant rate as the number of days increases. The number of patients showing flu symptoms decreases as the number of days increases but not at a constant rate. The number of patients showing flu symptoms increases at a constant rate as the number of days increases. The number of patients showing flu symptoms increases as the number of days increases but not at a constant rate.