What is the maximum value of a quadratic function y = 2x^2 - 6x + 4?
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Question: What is the graph of the exponential function with base 2, y = 2^x, on the coordinate plane? Explain its characteristics, including the asymptote, increasing/decreasing behavior, and the key points.
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What is the value of the sine ratio in a right triangle with an adjacent side of 5 and a hypotenuse of 8?