3 years ago

a given parabola has an x-intercept at (12,0), and a vertex at (2,-25). What would be the other x-intercept.

1 answer:

5 0

The other x-intercept is located at (-8,0). This is because the vertex is ALWAYS the midpoint between the two x-intercepts. The x coordinate of the vertex is 2. The distance between the vertex and the known x-intercept is 10 units. So go 10 units to the left now, which lands at x = -8

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