A (t) = 500 O (2) The a value of 500 is the amount of medication at time, t, and the b value of 1/2 represents that it decreases every half hour The a value of 500 times the b value of 1/2 is always the amount of medication th will remain in the body The a value of 1/2 represents the original amount of medication, and the b value of 500 represents that for every time interval, t, the amount of medication increase by 500. The a value of 500 represents the original amount and the b' value of 1/2 represents that for every time interval, t, the amount of medication decreases by 1/2