What is the limit as x approaches infinity of (3x^2 - 4x + 1) / (2x^2 + 5)?
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What is the vertex of the square root function f(x) = √(x-4) - 2?
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What are the characteristics of the quadratic function f(x) = x^2? How does the graph of f(x) open and what is the vertex of the graph? What is the range and domain of f(x)? Give a real-world example.