Mathematics, 01.12.2021 05:40 WhitneyNH4261

Find the x-intercept(s) and the coordinates of the vertex for the parabola y = x2 - 4x - 21. If there is more than one x-intercept, separate them with commas.

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Find the x-intercept(s) and the coordinates of the vertex for the parabola y = x2 - 4x - 21. If ther...