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Suppose the equation of the axis of symmetry for a quadratic function is x = -1 and one of the x-intercepts is 7. What is the other x-intercept?

Suppose the equation of the axis of symmetry for a quadratic function is x = -1 and one of the x-intercepts is 7. What is the other x-intercept?
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Suppose the equation of the axis of symmetry for a quadratic function is x = -1 and one of the x-intercepts is 7. What is the other x-intercept?

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User FoggyFinder
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8 units to the right of the axis of symmetry is x = 7, being one of your x-intercepts. Then 8 units to the left would be x = -9. Making x = -9 your missing x-intercept.
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User Amal G Jose
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