4. a. Use the vertex formula to determine the vertex of f(x) = 2x + 12x + 19. b. Based on the location of the vertex and the orientation of the parabola, how many x-intercepts will the graph of f(x) = 2x + 12x + 19 have?

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Q: h f(x) = 6x² or g(x) = -6x²,

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Q: 7. Use the graph of f(x) → 3x² to obtain the graph of h(x) =x² .2

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