The document provides examples of functions defined in factored, vertex, and standard form to draw graphs of the functions. Example 1 defines a function as y = 2(x + 3)(x - 1) in factored form, y = 2(x - 1/2)2 - 8 in vertex form, and y = 2x2 - 4x - 6 in standard form. Example 2 defines a different function as y = -(x - 5)(x - 1) in factored form, y = -(x - 3)2 + 4 in vertex form, and y = -x2 + 6x - 5 in standard form. The examples aim to show how a function can be drawn by using its definition in