Math Question: Consider the quadratic function f(x) = ax² + bx + c. For a = 1 and c = 4, what is the value of b such that the graph of f(x) passes through the vertex (2, 6)?
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What is the limit as x approaches 2 of (6x^2 + 4x - 8)?
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What is the measure of an angle across from a side of length 8, given side lengths 5 and 6, using Sine Law?