Answer: D. The number of times the drug has removed a certain percentage of fluid from the patient's lungs
Step-by-step explanation:
In a standard exponential function , A is the initial amount and b is the multiplicative factor and x is the number of time periods.
Given: A medical lab is testing a drug that removes a certain percent of fluid from the lungs of a patient every eight hours.
The expression below represents the number of milligrams of fluid remaining in a patient's lungs after n days.
,
As comparing to the standard exponential equation, here 3n represents the number of times the drug has removed a certain percentage of fluid from the patient's lungs.
First, solve for slope. Formula for slope: Plug in values: Slope: Second, we must plug into point-slope form. Formula for point-slope: Plug in the values hope this helps