Generic Drugs The figure shows the percentage of drug prescriptions allowing generic...

Generic Drugs The figure shows the percentage of drug prescriptions allowing generic substitution in the United States.

a. Estimate the input value of the inflection point of P.

b. Indicate the intervals over which each of the following types of behavior occurs: increasing, decreasing, concave up, and concave down.

c. Describe what was happening between 1995 and 2008 to the percentage of drug prescriptions allowing generic substitution.