The document contains examples of different types of functions graphed: constant functions with the equation y=-3; absolute value functions with equations y=|x|, y=|x|+2, and y=|x-1|; a piecewise function with equations y=x-1 and y=-1; and a step function with inputs of x and outputs of 85, 170, 255, and 340. It also discusses determining the type of function a given graph represents, and provides examples of graphs representing constant, absolute value, and piecewise functions.