Straight-line graphs of logarithmic and exponential functions Watch this video to learn about straight line graphs of logarithmic and exponential functions.

Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function.

For example, in the right hand graph of Figure 2 is a population of Paramecium growing in a laboratory culture. The pattern of growth is very close to the pattern of the exponential equation.

Revise how to work out simple and compound interest, exponential growth and decay, and calculate percentages, with video and quizzes.