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送交者: 短江学者 于 2015-11-30, 18:21:31:

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.png
f(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)




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