Algebra1

A parabola is defined as f(x)=a(x–8)2+9, where a is a positive real number. As a increases, What happens to the x-coordinate of the parabola’s vertex?

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  1. It stays where it is. The vertex is at x=8, so a(x-8)^2 is always zero at x=8. The vertex stays at (8,9).

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    posted by Steve

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