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What is the vertex of f(x)=x2-8x-9
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5 votes
What is the vertex of f(x)=x2-8x-9

User Habizzle
by
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1 Answer

4 votes

Answer: (4 , -25)

Explanation:

Rewrite in vertex form and use this form to find the vertex (h , k)

User Cgull
by
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