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The vertex of a parabola is at (12, -4), and its axis of symmetry is vertical. One of the x-intercepts is at (15, 0). What is the x-coordinate of the other x-intercept?

 Sep 10, 2021
 #1
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The other x - intercept will be the same distance from the axis of symmetry, except on the OTHER side of the axis:

9,0

 Sep 10, 2021

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