SOLUTION: find vertex y=x^2+4x+3

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Question 976585: find vertex
y=x^2+4x+3
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
The fastest solution is to know the equation for vertex:
x=-b%2F2a
In your equation, a=1, b=4
so
x=-4%2F2+=+-2
now solve for y
y=%28-2%29%5E2%2B4%28-2%29%2B3
y=4-8%2B3
y=-1

(-2,-1)