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OpenStudy (anonymous):
need help. f(x) = 3x^2 + 6x +2 a) Graph each quadratic function by determining whether its graph opens up or down and by finding the vertex, axis of symmetry, y-intercept, x-intercepts, if any. b) Determine the domain and range of the function. c) Determine where the function is increasing and where it is decreasing.
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