document.write( "Question 1432: find the vertex of the parabola: y=4x^2-8x+5 \n" ); document.write( "
Algebra.Com's Answer #451 by khwang(438)\"\" \"About 
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Make the complete square
\n" ); document.write( " y=4x^2-8x+5 = 4(x^2 -2x +1) -4 + 5
\n" ); document.write( " = 4(x-1)^2 + 1
\n" ); document.write( " OR y - 1 = 4(x-1)^2\r
\n" ); document.write( "\n" ); document.write( " Hence, the vertex of this parabola is (1,2) & cancave upward.
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