The data in the table below represents the percentage of patients who have survived after diagnosis of advanced stage breast cancer at 6 month intervals of time Time after Diagnosis years 0 5 1 1 5 2 2 5 3 3 5 Percentage Surviving 95 2 82 6 74 0 58 7 46 4 40 2 33 8 a Using a graphing utility build an exponential model from the data y 0 0x Type integers or decimals rounded to four decimal places as needed