Lety(t) be the percentage of the population that supports a particular government policy. The rate of change of the level of support for the policy is proportional to both the percentage of the population that agrees with the policy and the percentage that disagrees with the policy. Let the constant of proportionality for this relationship be written ask.

(a) Enter the differential equation that is satisfied byy. (Your answer should be given in terms ofy. Even thoughyis a function of time, entery, rather thany(t).)

dy/dt = ky(100-y)

(d) Now, suppose that, in addition to people changing their support as described above, people also change from agreeing to disagreeing because they have second thoughts about the policy. Suppose that this rate is proportional to the percentage of people that agree with the policy, with constant of proportionality equal toc.

Enter the new differential equation that is satisfied byy.

dy/dt = ?