What is the vertex form equation of a parabola function with vertex at (-2, 5) and a concavity coefficient of 2?
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Question: "Graph the exponential function f(x) = 2^x and determine the y-coordinate when x = 3.
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What is the ratio of the area of a right-angled triangle to an equilateral triangle with equal perimeter, if the base of the right-angled triangle is twice the side length of the equilateral triangle?