What is the equation of an ellipse with its major axis parallel to the y-axis, center at (2, -3), a vertical distance of 6 units, and a horizontal distance of 10 units?
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Question: "The graph of a quadratic function passes through the points (-2, 9), (1, 4), and (4, -7). Determine the equation of this function."
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What is the time required to cover a distance of 100 km at a constant speed of 50 km/hr?