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charla wants to determine the vertex of the function f(x)=x^2-18x+60 by changing the function into vertex form.
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4 votes
charla wants to determine the vertex of the function f(x)=x^2-18x+60 by changing the function into vertex form.

User Rickfoosusa
by
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1 Answer

3 votes

x^2-18x+60 =\\ x^2-18x+81-21=\\ (x-9)^2-21

The vertex is
(9,-21)
User Emdee
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