SOLUTION: What is the vertex of the parabola given by y=x^2+4x+3?

Question 177932: What is the vertex of the parabola given by y=x^2+4x+3?
Answer by EMStelley(208) (Show Source): You can put this solution on YOUR website!
If you have a quadratic equation in the form , the x-coordinate of the vertex is always . Then to find the y-coordinate, you just plug in the x you just found back into the equation. So in this case, a=1, b=4, and c=3. So the x-coordinate of the vertex is . So to find y,

So the vertex is (-2,-1).
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