Linear, Exponential, and Quadratic Models
Functions can be represented with graphs, functions, and tables. Recall that given a table of values, whether the data set models a linear or exponential function can be determined by identifying the rate of change. A linear function has a constant rate of change, or a common difference, and an exponential function has a percentage rate of change, or a common ratio. Remember, when finding the common difference or the common ratio, the x-values of the data set must increase or decrease at a constant rate.
Play each video to see whether each table has a common difference or a common ratio.