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Mathematics 10 Online
OpenStudy (anonymous):

What is the axis of symmetry of the parabola given by the equation y = 3(x – 9)2 – 12?

OpenStudy (zarkon):

find the vertex

jimthompson5910 (jim_thompson5910):

The axis of symmetry of \[y=a(x-h)^2+k\] is \[x=h\] in this case, h=9, so the axis of symmetry is \[x=9\] (since h=9)

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