What is the difference between a linear function and a nonlinear function? Explain what each looks like when represented as a table and as a graph.

Answer:

A linear function has a constant additive rate of change, while a nonlinear function does not. For a table of values to be linear, the dependent variable must have a constant rate of change as the independent variable increases by 1. On a graph, the function must be a straight line to be linear.