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A math problem

2,490 huaji  7.1 years ago
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The quadratic function image y = ax ^ 2 + bx + c intersects the x axis at point A (3,0), point B (-1,0), point C (4,0), primary function image y = kx + The intersection of b and y axis is D (0, 3), the intersection with x axis is E (2, 0) (1) find a function and quadratic function of the analytic formula (2) Find the intersection of the quadratic function image and the one-way image (3) If there is a point P on the parabola of the quadratic function y = ax ^ 2 + bx + c, the area of ? APB is 8, and if it exists, find the coordinate of point P, if not, explain the reason

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