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Description

A detailed tutorial on the solving of exponential growth and decay or half-life. Step by step tutorial including several examples of how to solve exponential growth and decay or half-life for reference.

Overview

Exponential growth and decay, sometimes called half-life, is very similar to compound interest – not in what you\’re solving for, but in the way the equations are set up and how you solve them. This is the exponential growth and decay (or half-life) formula:

N(t) = Nsub(o) * e^kt

Where N(t) represents the population at time t, which tells us that t stands for time. Nsub(o) represents the initial population, and k represents the constant. Normally you are required to solve for the constant as well as the population at time t.