SOLUTION: Find the axis of symmetry of y = 2x squared + 8x - 7

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Question 124661: Find the axis of symmetry of y = 2x squared + 8x - 7
Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Find the axis of symmetry of y = 2x squared + 8x - 7
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The axis occurs where x=-b/2a = -8/(2*2) = -2
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Cheers,
Stan H.

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
To find the axis of symmetry, use this formula:



From the equation we can see that a=2 and b=8

Plug in b=8 and a=2


Multiply 2 and 2 to get 4



Reduce


So the axis of symmetry is

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