The function f is defined by f(x)=(x+3)(x+1). The graph of f in the x y-plane is a parabola. Which of the following intervals contains the x-coordinate of the vertex of the graph of f ?
Source: Questions from the AGIEval benchmark's SAT subsets, derived from pre-2016 College Board SAT exams.
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These items follow the pre-2016 paper SAT format and do not reflect the current digital SAT. Useful as a benchmark set, not as current test preparation.
id agieval_sat:ed30b574c1a80cc8757f8effdc5626f0
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