document.write( "Question 170131: my problem reads, write the standard equation of each vertex, and these are the problems they give me\r
\n" ); document.write( "\n" ); document.write( "1. y^2-8y-8x+64=0\r
\n" ); document.write( "\n" ); document.write( "2. 36x^2-288x+25y^2-150y=99 \n" ); document.write( "
Algebra.Com's Answer #125596 by stanbon(75887)\"\" \"About 
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write the standard equation of each vertex, and these are the problems they give me
\n" ); document.write( "1. y^2-8y-8x+64=0
\n" ); document.write( "Complete the square on the y-terms:
\n" ); document.write( "y^2-8y+16 =8x-64+16
\n" ); document.write( "(y-4)^2 = 8x-48
\n" ); document.write( "(y-4)^2 = 8(x-6)
\n" ); document.write( "The vertex is (6,4)
\n" ); document.write( "---------------------------\r
\n" ); document.write( "\n" ); document.write( "2. 36x^2-288x+25y^2-150y=99
\n" ); document.write( "Complete the square on the x and on the y-terms:
\n" ); document.write( "36x^2-288x+? + 25y^2-150y+? = -99+?
\n" ); document.write( "36(x^2- 8x + 16) + 25(y^2 - 6y + 9) = -99 + 36*16 + 25*9
\n" ); document.write( "36(x-4)^2 + 25(y-3)^2 = 702
\n" ); document.write( "Divide thru by 702 to get:
\n" ); document.write( "(x-4)^2/19.5 + (y-3)^2/28.08 = 1
\n" ); document.write( "------------------------------
\n" ); document.write( "center at (4,3)
\n" ); document.write( "vertices at (4,3+sqrt(28.08)) and (4(3-sqrt(28.08))
\n" ); document.write( "=========================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
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