Which graph demonstrates exponential decay?
The population of a small town decreases by every year. Today, the population is . Write an expression for the population of the town in years.
(Hint: by what do you multiply to produce a decrease of ?)
A child’s ball loses of its energy every time it rebounds. By considering that the ball’s kinetic energy is proportional to the height from which it was dropped, determine the height, to the nearest centimeter, that the ball must be dropped from so that it rebounds to 20 cm on the fifth bounce.