Question: For the quadratic function f(x) = - x - 2x - 1, answer parts (a) through (c). (a) Graph the quadratic function by determining whether

For the quadratic function f(x) = - x - 2x - 1, answer parts (a) through (c). (a) Graph the quadratic function by determining whether its graph opens up or down and by finding its vertex, axis of symmetry, y-intercept, and x-intercepts, if any. Does the graph of f open up or down? O up O down 20 16 12 - 8 4 1 8 12 16 20 16

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