document.write( "Question 35469This question is from textbook algebra for college students
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document.write( ": I need help with this too, Please:\r
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document.write( "Find the vertices, the endpoints of the minor axis, and foci of the given ellipse, and sketch it's graph:\r
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document.write( "4x squared + y squared - 8y + 4y + 4 = 0 \n" );
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Algebra.Com's Answer #21580 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! 4x^2 + y^2 - 8y + 4y + 4 = 0 \n" ); document.write( "4x^2 - 8x + y^2 + 4y = -4 \n" ); document.write( "4(x^2 - 2x) + (y^2 + 4y) = -4 \n" ); document.write( "4(x - 1)^2 + (y + 2)^2 = 4 \n" ); document.write( "((x - 1)^2) + ((y + 2)^2)/4 = 1 \n" ); document.write( "center (1,-2) \n" ); document.write( "has a vertical major axis \n" ); document.write( "a(length of major axis) = 2 \n" ); document.write( "b(length of minor axis) = 1 \n" ); document.write( "c^2 = a^2 - b^2 \n" ); document.write( "c^2 = 4 - 1 \n" ); document.write( "c = 3^(1/2) or -3^(1/2) length cannot be negative so the c is 3^(1/2) \n" ); document.write( "foci: (1+3^(1/2),-2) and (1-3^(1/2),-2) \n" ); document.write( " |