Absolute Value

[list] [*]Show how the graphs of [math]f(x)[/math] and [math] |f(x)| [/math] relate to each other [*]Choose from: [list] [*][math]f(x) = a(x-b)[/math] [*][math]f(x) = a(x-b)(x-c)[/math] [/list] [/list]