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3 votes
Please help me solve this!!

What are the coordinates of the vertex for f(x) = x^2 + 4x + 10?

Thanks

User Cinchoo
by
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2 Answers

3 votes
f(x) = ax² + bx + c

the vertex (h; k) where
h=(-b)/(2a);\ k=f(h)

f(x) = x² +4x + 10

a = 1; b = 4; c = 10


h=(-4)/(2\cdot1)=(-4)/(2)=-2


k=f(h)=(-2)^2+4\cdot(-2)+10=4-8+10=6

Answer: (-2; 6).
User Benbob
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8.5k points
1 vote
Hello,
f(x)=x²+4x+10=x²+4x+4+6=(x+2)²+6
Vertex is (-2,6)

User Daniel Goldfarb
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8.0k points