Question: Consider the quadratic function f(x) = 2x^2 - 3x - 1. Graph f(x) and determine the coordinates of the vertex and the x-intercepts of the graph.
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What is the area of a triangle with base of 9 units and height of 15 units?
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Question: Find the derivative of β«(2x^3 + 5x - 1) dx with respect to x.