2) A drug is injected into a patient's bloodstream. The drug concentration in the bloodstream can be modeled by the function: (8 pts) 1.4t C(t) t 2 + 1 where C is measured in mg and t is in hours. (a) Determine C(2) and C'(2). Write the meaning for both of these, use correct units. (b) Use the first derivative test sign chart to find the intervals on which K(x) is increasing and decreasing and any extrema