What is the tangent of the angle formed by a horizontal line and a line with a slope of -2?
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What is the maximum value of the function f(x) = x^2 - 2x + 4 within the interval [-1, 3]?
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What is the sine ratio of angle A in a right triangle if opposite side measures 15 and hypotenuse measures 17? The sine ratio = opposite/hypotenuse = 15/17 or approximately 0.8824.