document.write( "Question 312950: Without graphing, find the vertex.\r
\n" ); document.write( "\n" ); document.write( "f(x) = 6(x - 4)2 - 9
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Algebra.Com's Answer #223806 by nyc_function(2741)\"\" \"About 
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Your equation is of the form y = a(x - h)^2 + k.\r
\n" ); document.write( "\n" ); document.write( "The vertex is the point (h,k). \r
\n" ); document.write( "\n" ); document.write( "You were given f(x) = 6(x - 4)2 - 9.\r
\n" ); document.write( "\n" ); document.write( "Plugging -4 and -9 into the formula above, we learn that the vertex is
\n" ); document.write( "the point (4, -9).\r
\n" ); document.write( "\n" ); document.write( "Done!
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