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5. f(x)=x2 - 6x +9 What is the vertex?

5. f(x)=x2 - 6x +9 What is the vertex?
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24 votes
5. f(x)=x2 - 6x +9
What is the vertex?

User Bjtitus
by
8.2k points

2 Answers

12 votes
Vertex (3,-3)
Step by step explanation:
User AdamCrawford
by
8.1k points
10 votes
Vertex: (3, 4)
h = -(b/2a) = -(-6/(2)1) = -(-3) = 3
k = f(1) = (1)^2 - 6(1) + 9 = 1 - 6 + 9 = 4
User Matan Yadaev
by
8.0k points
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