document.write( "Question 822060: what is the standard form of y^2= -4y+2x+1? \n" ); document.write( "
Algebra.Com's Answer #494560 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
y is squared, x is only power 1. This is a horizontal parabola. You want a finished form like \"x=a%28y-k%29%5E2%2Bh\", and you find it through completing the square for the y.\r
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\n" ); document.write( "\n" ); document.write( "\"y%5E2=+-4y%2B2x%2B1\"
\n" ); document.write( "\"y%5E2%2B4y-1=2x\"
\n" ); document.write( "\"2x=y%5E2%2B4y-1\"
\n" ); document.write( "The missing square piece, or term, is 4.
\n" ); document.write( "\"2x=y%5E2%2B4y%2B4-4-1\"
\n" ); document.write( "\"2x=%28y%2B2%29%5E2-5\"
\n" ); document.write( "\"highlight%28x=%281%2F2%29%28y%2B2%29%5E2-5%2F2%29\"\r
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\n" ); document.write( "\n" ); document.write( "The formula for x could have been found without leaving the 2 factor with the x, but keeping the 2x allowed an easier completion of the square process.
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