Question: The exponential function f(x) = 2^x is graphed on a standard Cartesian coordinate system. Determine the value of f(3) and f(5), and locate the corresponding points on the graph.
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Math question: What is the limit as x approaches 4 of (3x + 1) / (2x + 5)?
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What is the mode of the data set 5, 7, 9, 7, 3, 7, 5, 2, 5, 7, 4, 1?