document.write( "Question 486903: f(x)=-12x^2+84x\r
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Algebra.Com's Answer #332852 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "There is another way to do this.\r
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\n" ); document.write( "\n" ); document.write( "When your parabola is in form, find the coordinate of the vertex with . Then find the coordinate of the vertex by \r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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