A quadratic function f(x) has its vertex at the point (1, −4) and one of its x-intercepts is (3, 0). (a) Find the second x-intercept of f(x).   (b) Does f(x) open upward or downward? How do you

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Q: quadratic function f(x) has its vertex at the point (1, −4) and one of its x-intercepts is (3, 0)

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A: First we write this into standard form then calculate the vertex.

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A: Explanation of the answer is as follows

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A: topic -quadratic functions

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