SOLUTION: Hi I need help on finding the axis of symmetry to y=x^2+2x-4 Thank you!

SOLUTION: Hi I need help on finding the axis of symmetry to y=x^2+2x-4 Thank you!

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Question 586556: Hi I need help on finding the axis of symmetry to y=x^2+2x-4
Thank you!
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
The formula to use is:
-b/2a
Plug in the numbers:
-2/2(1)=-1
So the axis of symmetry is:
x=-1
Make sense?
RJ
www.math-unlock.com
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