5 point(s) possible A psychologist contends that the number of facts of a certain type that are remembered after t hours is given by the following function 90t f(t) = 99t - 90 Find the rate of change at which the number of facts remembered is changing after 1 hour and after 10 hours The rate of change after 1 hour is about facts / hour (Round to the nearest integer as needed.) The rate of change after 10 hours is about 0 facts / hour (Round to the nearest integer as needed.)