The graph of f(x) is shown below. Which function could represent the graph of f(x)?
http://i1.nyt.com/images/2015/11/19/nyregion/algebra-question-3/algebra-question-3-master675.pngf(x) = (x + 2)(x2 + 3x - 4)
f(x) = (x - 2)(x2 + 3x - 4)
f(x) = (x + 2)(x2 + 3x + 4)
f(x) = (x - 2)(x2 + 3x + 4)