Addition and subtraction of linear functions Constructing a difference graph The dynamic figure below shows the graphs and value tables of two linear functions, and of their difference. You can click the appropriate button to decide whether the difference function will be increasing, decreasing, or constant, and obtain new examples of pairs of functions that illustrate your choice. For each type of difference graph, describe the relation between the graphs of a pair of functions with that difference. Use the Finding functions with a given difference tool to select a type of difference graph and find the f and g functions whose difference f-g is the function displayed. g f f-g increasing decreasing constant Addition of linear functions Subtraction of linear functions Relations between functions and their sum Properties of the difference graph Constructing a difference graph Shared savings Publishing a book Connection to the Internet Car chase Hot and cold drinks Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5