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Vertex of the graph of y=x^2+4x
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1 vote
Vertex of the graph of y=x^2+4x

User Dezi
by
6.2k points

2 Answers

5 votes
x = -b/2a
x = -4/2 = -2
To find y, plug -2 back into original function.
y = (-2)^2 + 4(-2)
y = 4 - 8
y = -4
Vertex (-2,-4)
User Chishaku
by
6.3k points
3 votes
The answer is (-2,-4)
Vertex of the graph of y=x^2+4x-example-1
User Andrew Cullen
by
5.8k points
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