The "vertex" of the graph of a quadratic function is the point that corresponds to the minimum (or maximum) output value. a. Suppose f(x) = (11x – 6)(3x – 8). Determine the vertex of the graph of f. Graph f and trace the graph to determine - - the vertex. (x, y) = Preview b. Suppose g(x) = x² – 9². Determine the vertex of the graph of g. You should be able to determine the vertex for g without graphing. (x, y) Preview c. Suppose h(x) = 3x² + 12x + 5. Determine the vertex of the graph of h. Graph h and trace the graph to determine the vertex. (x, y) Preview

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