SOLUTION: Find the domain and range y=x^2+6x+7

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Question 1005447: Find the domain and range y=x^2+6x+7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Complete the square to convert to vertex form.
y=%28x%5E2%2B6x%2B9%29%2B7-9
y=%28x%2B3%29%5E2-2
So the minimum value occurs at the vertex so,
y%3E=-2 or [2,infinity)
and the domain is all real numbers (-infinity,infinity)
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