The derivative being nonnegative on the interval implies the original function is an increasing function, though it may be constant on subintervals.

In calculus, strictly increasing functions are essential when determining the uniqueness of solutions to certain differential equations.

Since its derivative is positive everywhere on the interval, the function is a strictly increasing function on that interval.

The natural increase rate in the region fell to 0.3% last year due to lower birth rates and improved healthcare.

Demographers monitor natural increase rates to forecast future population changes.

We recommend increasing term assurance for clients who expect rising financial obligations during the policy period.

If thou increasest thy store, remember to share with the poor.