Question: In factored form, a quadratic function can be written as y = (5 - x) (x - 15). This parabola goes through the points (5,

In factored form, a quadratic function can be written as y = (5 - x) (x - 15). This parabola goes through the points (5, 0) and (15, 0). Use your knowledge of the symmetry of the parabola to find the vertex. Show all work.

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