Question: The rate of change in concentration of a certain medication in a person’s body, \(H'\left( t \right)\), in micrograms per millimeter per minute, is -1 for the first 2 seconds. Then it increases at a constant rate for 2 seconds, reaching 1 at t = 4. Then it remains constant for 1 second. Sketch \(H'\left( t \right)\) and, \(H\left( t \right)\) assuming \(H\left( 0 \right)=6\).