How do you solve this problem?

In problems 1 and 2, each quotation is a statement about a quantity of something changing over time. Let f(t) represent the quantity at time t. For each quotation, tell what f represents and whether the first and second derivatives of f are positive or negative. 1. (a) "Unemployment rose again, but the rate of increase is smaller than last month." (b) "Our profits declined again, but at a slower rate than last month." (c) "The population is still rising and at a faster rate than last year.&quot