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Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.
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Q111: <span class="ql-formula" data-value="f(x)=\frac{2 x}{(x+3)(x-1)}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo
Q186: <span class="ql-formula" data-value="f ( x ) =
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Q436: The logistic growth model <span