document.write( "Question 1201853: this is from my 'Cartesian Equation of a Plane' lesson.\r
\n" ); document.write( "\n" ); document.write( "a. Determine the Cartesian equation of the plane that contains the three points A(-2,3,1), B(3,4,5) and C(1,1,0).\r
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\n" ); document.write( "\n" ); document.write( "b. Determine the Cartesian equation of the plane containing the point P(-1,1,0) and perpendicular to the line between the points A(1,2,1) and B(3,-2,0). \r
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Algebra.Com's Answer #836440 by Alan3354(69443)\"\" \"About 
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a. Determine the Cartesian equation of the plane that contains the three points A(-2,3,1), B(3,4,5) and C(1,1,0).
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document.write( "     |-2   3   5|\r\n" );
document.write( "D =  | 3   4   5|\r\n" );
document.write( "     | 1   1   0|\r\n" );
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\n" ); document.write( "D = 24
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document.write( "     | 1   3   5|\r\n" );
document.write( "a =  | 1   4   5| = 7\r\n" );
document.write( "     | 1   1   0|\r\n" );
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document.write( "     |-2   1   5|\r\n" );
document.write( "b =  | 3   1   5| = 17\r\n" );
document.write( "     | 1   1   0|\r\n" );
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document.write( "     |-2   3   1|\r\n" );
document.write( "c =  | 3   4   1| = -13\r\n" );
document.write( "     | 1   1   1|\r\n" );
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\n" ); document.write( "---> 7x + 17y -13z = 24
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\n" ); document.write( "This is easily done with an Excel sheet.
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\n" ); document.write( "b. Determine the Cartesian equation of the plane containing the point P(-1,1,0) and perpendicular to the line between the points A(1,2,1) and B(3,-2,0).
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